Single length Re-Boot

[boggyman]

Contemplating hard on going SL again. Have tried it  three times at short stints but played good golf with SL. Wondering though if COBRA will change the design for the upcoming year? Not really a fan of the current models top line. Lots of great points both good and bad I’ve read, more good though. I believe it just help simplify the swing. Before when I tried  them in the past seems as though I really had no thoughts over the ball, just step in and swing away. Same setup, ball position just became a natural tendency, same place pretty much every shot, just simple. I really like the concept. I’ve tried it 3 different times and looking back I miss SL!

Edited October 13, 2020 by boggyman

[OsnolaKinnard]

Went to hit balls for first time since cancer surgery 3 weeks ago...hitting my Edels was like catching up with a long lost friend.

 

I warmed up amd hit a nice little knockdown fo about 100-110 yards...perfect contact, ball jumped up just to the right and as it descended it turned left towards the pin.  This was probably one of fhe best feeling shots I hVe ever had.

 

Love my SL irons.

[Liveonce]

1 hour ago, OsnolaKinnard said:

Went to hit balls for first time since cancer surgery 3 weeks ago...hitting my Edels was like catching up with a long lost friend.

 

I warmed up amd hit a nice little knockdown fo about 100-110 yards...perfect contact, ball jumped up just to the right and as it descended it turned left towards the pin.  This was probably one of fhe best feeling shots I hVe ever had.

 

Love my SL irons.

Thinking of getting fit for Edels. What type of set do you Carry ? How do they fit with the rest of your bag? Can you provide any relevant details? Concerned with launch and distance for the long irons. Thanks!

Edited October 14, 2020 by Liveonce

[OsnolaKinnard]

1 hour ago, Liveonce said:

Thinking of getting fit for Edels. What type of set do you Carry ? How do they fit with the rest of your bag? Can you provide any relevant details? Concerned with launch and distance for the long irons. Thanks!

I got fitted and I hit EVERYTHING they had from 3-SW.  I settled on a set 5-GW.   I wish I had gotten a 4 iron and SW now. My swing has improved and my ball striking has gotten significantly better since I was fitted a few years ago.

 

Below is a short version of how my fitting went.

 

So...my advice when you go to. your fitting...DO NOT look at what he hands you.  You're a gear junkie or you would not be here.  Just swing the clubs the fitter hands you with no preconceived notions...their shaft and head weights are all highly 'adjustable' to you, they will dial you in.  Once you start 'settling in', you will get handed a club and asked how you like it...then they make some adjustments, which you won't see, and they will do like your eye doctor...is this better, or worse...until they find what you like..THEN they start looking at ball flight, spin, dispersion, descent angle, etc.

 

Here's the cool thing with the Edel irons..it's the shaft that makes a TON of difference.  They have 3 weights, 85, 95, and 115, they have 3 flexes, R, S, X ,and they have three 'profiles, long iron (higher), middle iron (mid) and short iron (lower).  Do not discount this as gimmicky...it works.  The Paderson Single Length shafts are incredible shafts.

 

Something else, they can make the weight of the head pretty much ANYTHING you want.  

 

As it pertains to the 3-5 iron.  Despite being 'single length' irons, Edel can make you whatever you want. If you want the 3-5 in 38" and the 6-PW at 37 or whatever...they can do that.  I have thought of ordering a 3 and 4 iron at their max length of 38 inches long and to my specs...hell, I thought about telling them to suck it up and make them 39" long.  Do not be afraid to think outside the box with your fitter.  Think about 'what works' for you...not what they say 'it should be'.

 

I ended up getting fitted for 37.5*, 2* upright, and a 272 gram head.  I had 95 gram shafts (that shocked me I expected to have 115's as I was playing old school Rifle 6.0 steel shafts), stiff flex, and long iron profile in the 5, 6, and 7 irons and mid iron in the 8 and 9 and short iron in the PW and GW.  My grips are GP New Decade midsize with 2 wraps.  I got red, white, and blue paint fill and my grips are red on the wedges, white on the 8 and 9 and , blue not the 5-7.

 

Good luck, have fun, post up your experience...I would love to read it.

[OsnolaKinnard]

@Liveonce, I forgot to tell you, not only my set, but my bag, because that will explain my thought process.

 

I currently have a driver (Epic Sub Zero), 3 wood (TEE CBX), and a Kasco K2K Hybrid in 16, 19, and 22* Those are my 230, 215, and 200 yard clubs.  I have guy irons at 5-GW, then SW and LW.  

 

I am trying out a TEE CBX 18* hybrid, which I am liking alot.  Thinking about adding a Utility club to be my 3 and 4 iron.  I really like the Srixon U85, and hit them the distances I want (215 and 200).  I am making this switch because I love my Kascos and have gamed them for a VERY long time, but on the Texas Coast, we have a pretty constant and substantial breeze, and the Kascos are very high spin/high launch hybrids.  They play almost 1/2 club shorter than stated loft.  I am waiting on the Srixon ZX version of the UT's to show up in 2021 and will end up adding them to the bag.  I will also order the Srixon ZX Utility clubs at the same length, lie, and swing weight and same shaft.  So...those clubs will all be same length, irons same length wedges same length.

 

Speaking of wedges, I will be getting some new ones...just trying to figure out what I want.  They will be 36.5" long and 2-3* upright, whatever they are like my current wedges.

 

I will admit, I used to obsess about the 'gap' between my shortest hybrid and my 5 iron.  It was weird, but then I played and realized I was complaining about a 2% problem, which was easily addressed by simply choking down a bit on my 22* hybrid, and this is even easier to do with the utility club.

 

I have all distances covered with no muss, no fuss.  

Edited October 14, 2020 by OsnolaKinnard

[Liveonce]

4 hours ago, OsnolaKinnard said:

@Liveonce, I forgot to tell you, not only my set, but my bag, because that will explain my thought process.

 

I currently have a driver (Epic Sub Zero), 3 wood (TEE CBX), and a Kasco K2K Hybrid in 16, 19, and 22* Those are my 230, 215, and 200 yard clubs.  I have guy irons at 5-GW, then SW and LW.  

 

I am trying out a TEE CBX 18* hybrid, which I am liking alot.  Thinking about adding a Utility club to be my 3 and 4 iron.  I really like the Srixon U85, and hit them the distances I want (215 and 200).  I am making this switch because I love my Kascos and have gamed them for a VERY long time, but on the Texas Coast, we have a pretty constant and substantial breeze, and the Kascos are very high spin/high launch hybrids.  They play almost 1/2 club shorter than stated loft.  I am waiting on the Srixon ZX version of the UT's to show up in 2021 and will end up adding them to the bag.  I will also order the Srixon ZX Utility clubs at the same length, lie, and swing weight and same shaft.  So...those clubs will all be same length, irons same length wedges same length.

 

Speaking of wedges, I will be getting some new ones...just trying to figure out what I want.  They will be 36.5" long and 2-3* upright, whatever they are like my current wedges.

 

I will admit, I used to obsess about the 'gap' between my shortest hybrid and my 5 iron.  It was weird, but then I played and realized I was complaining about a 2% problem, which was easily addressed by simply choking down a bit on my 22* hybrid, and this is even easier to do with the utility club.

 

I have all distances covered with no muss, no fuss.  

thanks for sharing both posts, very informative. I’m currently carrying a D, 3w, 19* hybrid, 22* hybrid, 5-pw, and 50/54/58 wedges. Hoping to cover Up to 200-205 with The Edels for it to work, hybrids can cover the rest. I am hoping to go 4 or 5 through PW or GW and then carry 2 speciality wedges like you do. Basically for 100 yds and In and green side play. 
 

do you find the ball flight on the 5-6 irons to be high enough and hold greens?

 

also, Curious to see if I’ll fit into a 7 or 8 iron shaft length. Hoping to stick with one across the board so that I can simply my game as practice time is pretty limited at this point

Edited October 14, 2020 by Liveonce

[OsnolaKinnard]

2 hours ago, Liveonce said:

thanks for sharing both posts, very informative. I’m currently carrying a D, 3w, 19* hybrid, 22* hybrid, 5-pw, and 50/54/58 wedges. Hoping to cover Up to 200-205 with The Edels for it to work, hybrids can cover the rest. I am hoping to go 4 or 5 through PW or GW and then carry 2 speciality wedges like you do. Basically for 100 yds and In and green side play. 
 

do you find the ball flight on the 5-6 irons to be high enough and hold greens?

 

also, Curious to see if I’ll fit into a 7 or 8 iron shaft length. Hoping to stick with one across the board so that I can simply my game as practice time is pretty limited at this point

The 6 iron is no problem, as my irons are actually 6 iron length.

 

The 5 iron is 'ok' at 37.5".  Keep in mind, that is only .5" below 'standard', but I think it would be a better performer at the standard length.  Same with the 4 iron.

 

When you get fitted ask them about going longer in the 4 and 5, I wish I had as I may have also bought a 3 and 4 iron. I know that 'negates' the whole single length thing, but heres the deal..the Edel club heads are awesome.  

 

I described them in my original post like this.  If the Miura Baby Blade was a super model and the Callaway Big Bertha was the drunk fat chick at 2 AM...then the Edel is like a thick cross-fit chick, she ain't a supermodel, but she's thicker than a bowl of oatmeal and has it where she needs it and knows how to use it.

 

The SLS01 head has minimal offset, a semi-thick top line, great shape, great feel, and a lot of technology in them without looking clunky.   The 'wing' on the back is a throwback to older clubs.

 

Don't be afraid to be different...this isn't 'doctrine', it's finding what works.

[Liveonce]

2 hours ago, OsnolaKinnard said:

The 6 iron is no problem, as my irons are actually 6 iron length.

 

The 5 iron is 'ok' at 37.5".  Keep in mind, that is only .5" below 'standard', but I think it would be a better performer at the standard length.  Same with the 4 iron.

 

When you get fitted ask them about going longer in the 4 and 5, I wish I had as I may have also bought a 3 and 4 iron. I know that 'negates' the whole single length thing, but heres the deal..the Edel club heads are awesome.  

 

I described them in my original post like this.  If the Miura Baby Blade was a super model and the Callaway Big Bertha was the drunk fat chick at 2 AM...then the Edel is like a thick cross-fit chick, she ain't a supermodel, but she's thicker than a bowl of oatmeal and has it where she needs it and knows how to use it.

 

The SLS01 head has minimal offset, a semi-thick top line, great shape, great feel, and a lot of technology in them without looking clunky.   The 'wing' on the back is a throwback to older clubs.

 

Don't be afraid to be different...this isn't 'doctrine', it's finding what works.

Having different lengths would probably Be a deal breaker for me and defeat the purpose to transition to 1 length irons.  My current irons feel great and are forgiving, hoping to keep one swing and ball position throughout the bag 4-gw really. 

[OsnolaKinnard]

3 hours ago, Liveonce said:

Having different lengths would probably Be a deal breaker for me and defeat the purpose to transition to 1 length irons.  My current irons feel great and are forgiving, hoping to keep one swing and ball position throughout the bag 4-gw really. 

Try it and see. My swing is MUCH better now than when I got fitted.

 

The launch profiles of the shafts sre rhe real deal. 

[Rich Douglas]

On 9/22/2020 at 7:19 AM, Rbsiedsc said:

my fitter told me these are a gimmick and only a unicorn can pull them off. The lies will need to be adjusted on every club and if you have a slow swing speed, they will not do anything for you. Try them a your own risk.

 

My fitter for my Sterlings, my fitter for my EQ1-NXs, and I all disagree.

 

The lie angles stay the same throughout the set. Cobra changes them, but it's a mistake. Everything about every club--except for materials, CG, and loft--are is the same throughout the set. Lie angles, weight, swing weight, MOI, everything. 

 

As for swing speed, you need to be able to swing the iron they're built around (I build mine around an 8-iron length of 36.5") at 80 mph or more to use the 5-iron. Otherwise, you'll need to start the set with a 6-iron. Also, Wishon now offers hybrids built EITHER to the same length or to traditional lengths to fill the gaps.

 

My Sterlings were 4-iron through Sand Wedge. My new EQ1-NX set will be 5-iron through SW. (I use tradition hybrids above the 5-iron.)

 

Perhaps relying on 3rd-party opinions (unicorn? Seriously?) is not as reliable as actually talking to a certified Wishon fitter or, better yet, someone with years of experience with them, or even better than that, try them yourself.

[Rich Douglas]

On 10/5/2020 at 7:04 AM, jons1 said:

Whatever works for people, but it sounds like an expensive experiment with more cons than pros.

 

It isn't. There are lots of pros and no cons. None at all if you do it right.

 

Variable-length clubs get their consistency from adjusting swing weight. That's why you can wield a 4-iron and a pitching wedge--which weigh differently--in much the same manner. But they're not the same. The 4-iron is, generally, a lot harder to hit. This is because of its lower loft and longer length. Okay, so what about single-length clubs?

 

Single-length clubs all weigh the same. They have the same static weight, swing weight, MOI, lie angle, everything. The only things that vary are loft angle, CG, and materials used in forming the club. 

 

When golfers switch to single-length clubs, their initial impression is that the lower-lofted irons are too short and the wedges are too long. But both of these feelings disappear with use. That's the thing that inexperienced posters miss, because they haven't gone through the experience. There's something about grooving one feel that makes it all come togther.

 

So is a single-length pitching wedge--in my case built at 36.5"--as easy to hit as a 36.5" 4-iron? No. Not "as easy." The lower loft still exposes poor strikes, just as it does in traditional clubs. But those poor strikes are less frequent because the club is easier to hit. But isn't the reverse true? Doesn't that make the PW harder to hit because it's an inch longer? No. At first it's a little weird. I found myself (subconsciously) backing off my PW and GW--I was afraid they'd fly to far, which made them fly too short! But again, with practice and awareness, that went away. Switching four years ago made my iron play more consistent. I'll never go back to variable-length clubs.

 

Expensive? Why is that? Yes, Edel clubs are expensive, but that's true with their lineup. The Cobras aren't anymore expensive, and the Wishons (which I play) are priced the same as the major OEMs. What gets expensive is proper fitting and good shafts--which is true with any club. There is no inherent reason SL clubs should be more expensive, and they're not.

 

Specious arguments from people with no experience hitting these clubs are not helpful.

[Rich Douglas]

On 9/22/2020 at 9:02 AM, MtlJeff said:

I would be worried about my distance gaps. I have good gaps now, i would think single length shafts would cut into those.

 

They don't, except on the extreme low-loft end for slower swingers. I hit my Sterling 4-iron with proper gapping, and it's built at 36.5" length (typical 8-iron). Wishon is now introducing more single-length hybrids to substitute on that end.

[Rich Douglas]

On 9/22/2020 at 11:46 AM, elwhippy said:

No. I have a long running bet with our local store as to when they will sell their second set of Cobra single length. The last sale was over a year ago. Still a gimmick. 

 

No, you don't. If your store has sold only one in the last year, you must live very far away from civilization. Cobra has come out with multiple versions over the years. They're in business to sell golf clubs; you'd think they'd stop doing that if the clubs didn't sell.

 

Wishon, hardly an OEM, is now coming out with a follow-up to the Sterling irons. Why? Perhaps he's trying to sell that second set, too? 

 

If you haven't played them, you can't say.

[Rich Douglas]

On 9/22/2020 at 9:28 PM, Shilgy said:

Equal length would be a better fit more for serious players that are willing to make a greater time and financial investment in their game.

 

Do you have anything to back this up? Yes, you have to go to a fitter to get a set from Edel or Wishon, but Cobras sell off-the-rack all over.

 

Getting fit and using good materials is a good idea for everyone, but there's not a particular reason that it's more so in single-length clubs.

[Rich Douglas]

On 9/23/2020 at 6:58 AM, Fairway14 said:

 

I believe most low handicap players who have tried one length sets are discouraged by two primary factors:

1) the mid and long iron trajectory is too low, and , or, not enough carry distance difference between clubs.

2) the long wedge shafts make it too challenging to play wedge shots the way they want to play them.

The first is true for slower swingers, who can substitute hybrids for those lower-lofted clubs. You know, like many people do with traditional long irons.

The second simply isn't true in practice. Sorry. 

[Rich Douglas]

On 9/23/2020 at 10:51 AM, hanfrac said:

I tried and failed earlier this summer.  Bought a set of Cobra Forged One Length (same heads BD plays, I believe) with KBS Tour stiffs.  I'm a 98-100mph driver guy, hit a 7 iron about 160.  I couldn't hit the one lengths to save my life.  I don't know if there was some adjustment I needed to make or what, but it was ugly shot after ugly shot, and they felt terrible.  I gave up after 3-4 range sessions and 3-4 rounds after seeing nothing encouraging.  Went back to my Apex/Apex Pro combo set.

 

It wasn't swing speed. You probably swing the Cobras at about 80 mph (assuming they were built at 37"), which should have been sufficient to get good gaps through the 5-iron (even, perhaps, the 4-iron).

 

It's true that not everyone can make the mental adjustment to single-length. But it is also rather rare. Glad you found your way back to what makes you happy.

[hanfrac]

21 hours ago, Rich Douglas said:

 

It wasn't swing speed. You probably swing the Cobras at about 80 mph (assuming they were built at 37"), which should have been sufficient to get good gaps through the 5-iron (even, perhaps, the 4-iron).

 

It's true that not everyone can make the mental adjustment to single-length. But it is also rather rare. Glad you found your way back to what makes you happy.

 

I really wanted the single lengths to work.  One theory I have is that I didn't get the real thing - I got some knockoff's that just weren't right and that there was some lack of quality in them.  They truly felt horrible to hit.  

 

With all due modesty, I'm good enough to be able to hit a variety of clubs and hit different shots.  I don't think I have a mental adjustment problem.  

 

I may try again at some point, but my maiden voyage did not go well.  I did it on the cheap and got my money out.  Next time, maybe i have to invest $700-1500.

[Rich Douglas]

6 hours ago, hanfrac said:

One theory I have is that I didn't get the real thing - I got some knockoff's that just weren't right and that there was some lack of quality in them.  They truly felt horrible to hit.  

 

 

I didn't mean you lacked some ability or quality to make the adjustment, just that some people just don't like them.

 

That really could be it, however. There are some terrible products out there. I can speak personally for Wishon Sterling and EQ1-NX, and I suspect Edel and Cobra are pretty good. But so much has to do with getting properly fit, which the knock-offs don't do.

[9woodfan]

I switched to SL when Wishon brought them out in left handed. Cobra wasn't on the market yet (they were close) so I ordered a handful of irons to test. Had them built to my specs and used them on and off against my full Ping bag. Slowly but surely the Pings started staying in the basement, then I ordered more Sterlings... fast forward a few seasons now and these irons are firmly planted in my bag and will problem never leave.

 

I did have issues with the 5 iron and height so I stuck with 6 iron thru to a KZG LW built to match.

 

My 6 iron is plenty long and I felt having the 5 didn't make much difference so I dropped it.

 

After all the SL I have a stock F8 4 hybrid and 5 wood at 17*

 

I've loved SL... not for everyone but they've def helped my game and dropped my scores.

[Rich Douglas]

Okay, after two driving range sessions, I went into the simulator to check for gapping, willing to adjust each club stronger or weaker as needed. It wasn’t needed. The gaps were good. Carry distances for a decent strike:

5I – 199
6I – 186
7I – 173
8I – 162
9I – 151
PW – 139
GW – 128
SW – Not taken (awaiting delivery)

The carry distances are not valid–you can’t take them to the golf course. But they’re reliable–they predict good gapping. I’ll be more precise with distances with experience.

These numbers are similar to my Sterlings, but I think the shot dispersion was tighter. (I didn’t compare it, but it seems so.)

I hit it with a constant draw. That’s my natural shot, but I couldn’t really tell how much of that was me and how much of it was my alignment on the simulator. I didn’t draw it as much on the range yesterday.

Feel: Good. Shots off the toe (my favorite miss) do well, as do shots towards the heel. Shots struck on the center of the clubface feel softer than the Sterlings.

Offset: Nice. I think they’re cutting down my tendency to draw, but it’s too early to tell.

Lie Angle: Ordered them 2 degrees upright. They came correctly adjusted.

Looks: Nice. The topline is a bit slimmer than I expected <wink>. I can see some equipment sticking out from behind the 5-iron, but that was also true of the Sterlings.

Club Range: In the Sterlings, I struggled with the 4-iron. Lots of length, but it carried too close to the 5-iron (and that’s at 88mph swing speed). I saw that again in the simulator today. Almost 20 yards more distance, but 15 of that was roll-out.

 

Big Change: Switching from a 110g steel shaft to the 86g graphite: UST Mamiya Recoil 780 ES Smacwrap Iron and “S” Flex 86 grams. My club fitter freq’ed them and spine-matched them, too. I moved from a D3 swing weight to D1, which is noticeable. If I don’t like it, I’ll switch to a lighter grip and bring it up a weight or two.

 

Sum: Great stuff. If you’re looking to switch to single-length, you have to consider these clubs. Because I really wanted them built around an 8-iron length–36.5″–it made sense to stay with Wishon. (The two others I would consider–not to be mentioned here, build around a 7-iron and 6-iron length. All of this can be adjusted, of course. For example, you can build the EQ1-NX around those lengths, just remember to adjust the lie angle) The shorter length limits how far you can take the low-lofted irons, validating Tom’s decision to omit the 4-iron and go with single-length hybrids. (I was tempted, but I love my current, traditional hybrids too much.)

 

I can’t wait to take them out on the course. Go get yourself a set!

[Rich Douglas]

If you're already playing Sterlings, I'm not sure the case can be made to spend this much on the upgrade. Better? Sure, but not terribly so. I made the change in part because I wanted to switch shafts and because I've been so pleased with my single-length experience. 

 

I'm stuck with the Sterlings, too. They have little trade-in value (because they're lumped in with all the other component clubs, most of which are crummy). So I have a 10-club set (4-iron - LW) I probably won't be able to trade, and I'm not interested in the effort it takes to sell the set; it's not really worth the money. But I'm glad I made the change.

[Rich Douglas]

Took the EQ1-NX set on the course for the first time today. I got mixed results–but not because of the clubs. When I had this set built, I switched to a lighter shaft as well, going from a 110g steel shaft to an 86g graphite shaft. I also went from a D3 swing weight to D1.5. Lighter gross weight, lighter swing weight. What could go wrong? Plenty, and nothing to do with the EQ1-NX, except one little thing I’ll mention below.

During the round, I was getting mixed results. I’d fly one shot an expected distance, then come up really short (like two clubs short) on others. It was a mystery. I was getting my usual results from my driver, so what was going on?

Weight. Because the club both felt lighter (by almost 2 swing weights) and WAS lighter (because of the shaft–the EQ1-NX club heads weight about the same as Sterlings), I was struggling with it. It took the entire round to figure it out. I was losing the feel of the club head during the backswing, and cutting short my turn! I’d make a full turn on one shot and then fail to do so on another. I knew something didn’t feel right, but I couldn’t figure it out. Why?

Because the EQ1-NX feels so, so good. The shots I was hitting fully and the shots I was cutting short both felt great off the clubface. Am I blaming the club instead of myself? Of course! <wink>

In the 18th fairway, with no one behind us, I dropped three balls at the 150y marker, pulled the 9-iron, made three full swings, and dropped all three on a tiny green. Voila!

The real culprit–remember, not the golfer!–was the lighter gross and swing weight. But once I realized it and made good turns, the problem disappeared. And the EQ1-NX irons felt like butter the whole time.

When I went to single-length irons 4 years ago with Sterling, I had a similar problem between my ears. Back then, it was the wedges; they seemed so long, yet everything was flying really short. I came to realize it was me–I was backing off the irons because they seemed so long; my mind was making unconscious adjustments. Once I realized it, the problem went away.

To be clear, this is about me going to graphite for the first time. If I’d just swapped out my Sterling heads for EQ1-NX heads on the same shafts, I doubt I would have noticed. Except for the extra 5 yards I seem to be getting with flush shots, and the extra forgiveness I’m getting with my favorite miss out on the toe.

These are terrific clubs. They feel great. They’re really accurate. The diminished offset and standardizing it are great moves. And the distance is about the same (or a tweak more).

Great stuff!

[TKS]

I went through the same situation going from S300s to 85gr graphite.  Went back to the S300s and my swing came back. EQ1-NX little improvements are starting to help - working the ball better and the wedges are perfect.

Edited November 16, 2020 by TKS

[kenstl]

On 9/22/2020 at 2:37 PM, MattM97 said:

I want to try out OL, I think it will work for someone at my height and size especially in the shorter irons. The issues are options and money, do I want to spend the money on a trail? Most likely not. 

Not trying to being rude, but unless you are a scratch golfer, do you really think it would hurt your game in the scoring department?  Buy a used set off of eBay and try it for a year.    The simplicity outweighs some of the minor negatives IMO, especially fir tall golfers.  It’s all about having fun and I think for most, shooting lower scores. I know SL helped me drop my HC.  

[kenstl]

On 9/23/2020 at 8:48 AM, Fairway14 said:

 

Relatively little inventory is the reason. I don't believe Cobra ever produced a large volume of one length sets, and as such there is little supply of used inventory.

I just saw an interview in which a Cobra rep stated one length irons made up 40% of their iron sales.  I would say they are becoming a large part of their product line.