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Going to lighter shafts - total weight vs swingweight - MMT 105TX shafts


Albatross85

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Long time PX LZ 6.5/7.0 user in irons. I recently picked up a set of PXG 0311T Gen3s with MMT 105TX shafts. Really love the flight but my god......i have to wait forever in transition to make these work. I cannot for the life of me feel the club in transition. 

 

My normal irons are D4 and these PXG are D5 but the Total weight of the clubs is around 5-7 grams lighter per club. 

 

Question: should i try adding lead tape and getting the swingweight even higher to see if it feels better? If i get the PXG up to D8ish then the total weight of the clubs will be spot on with the set ive played for 5 years. This would make the MOI similar if i understand MOI correctly. (I'm not sure i understand MOI...)

  • AI Smoke 🔷🔷🔷10.5* Kaili White 60X
  • TM SIM Ti 18.25* - Tensei AV White 2.0 TX
  • TM Stealth 7w 21* - Fuji Pro 2.0 Tour Spec 8s
  • Srixon ZX Utility 23* MMT 105TX HS
  • Srixon ZX7 5-Aw PX LZ 6.5 SS
  • Mizuno T7 55* - PX LZ 6.5
  • TM MG4 60* SBC - DG TI S400
  • Bettinardi Inovai 6.0 2024
  • Tour B XS

 

 

 

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23 minutes ago, Albatross85 said:

Long time PX LZ 6.5/7.0 user in irons. I recently picked up a set of PXG 0311T Gen3s with MMT 105TX shafts. Really love the flight but my god......i have to wait forever in transition to make these work. I cannot for the life of me feel the club in transition. 

 

My normal irons are D4 and these PXG are D5 but the Total weight of the clubs is around 5-7 grams lighter per club. 

 

Question: should i try adding lead tape and getting the swingweight even higher to see if it feels better? If i get the PXG up to D8ish then the total weight of the clubs will be spot on with the set ive played for 5 years. This would make the MOI similar if i understand MOI correctly. (I'm not sure i understand MOI...)

 

Everyone is different in how they perceive static or head weight changes but if it's worse in transition, I'd start with lead tape on the head.  Largely because it's easiest to do and can sometimes help even if the problem really is the static weight (which is likely the case here coming from PX's).

 

The softer profile of the MMT's vs PX can also make the weight difference seem even worse than it is so don't discount stiffness changes as a minor contributor.

 

Ideally, you'd want to do progressive static weight experiments too.   Increase shaft weight by 5 or 10 gm increments (wrap lead tape around the shaft 3"-5" below the bottom of the grip) and after each step up in "shaft" weight refit for head weight as well.  Repeat until you find the best combination of shaft weight and head weight.

Edited by Stuart_G
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I'm with Stuart on this one. The MMT are supposed to be great shafts and it seems, by your description, that a simple weighting issue is all that they need. When I switched from steel to graphite iron shaft a few years ago, I found the SW was heavier after I got them feeling the way I wanted. Most of my irons SW in the d6-d7 range.

 

Good luck!

 

BT

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Dr#1 Cobra Speedzone 10.5 – HZRDUS Yellow HC 65 TX @ 46”
Dr#2 Mizuno STZ 220 9.5 (10.5) - HZRDUS Smoke IM10 65 Low TX @ 46"

Mizuno ST190 15 - HZRDUS Smoke Yellow 70 TS @ 43"
Mizuno STZ 220 18- HZRDUS Smoke Yellow 70 TS @ 42"
Mizuno MP15 4-PW - Aldila RIP Tour 115 R
Cobra MIM Wedges 52, 56 & 60 – stock KBS Hi-Rev @ 35.5”

Odyssey V-Line Stroke Lab 33.5"
Grips - Grip Master Classic Wrap Midsize

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I have a TMB 4 iron shafted with the MMT 105 TX shaft. I went to this combo for a slightly lighter shaft with a more forgiving head than my set iron. The weird part is the total weight weight of my TMB/MMT iron is the same as my set MMC/PX 4 iron, but SW is a 2-3 points heavier with the MMT/TMB. The iron definitely does what it's supposed to to do, but the shaft isn't as stiff as I was expecting. By comparison I find the AD IZ hybrid shaft to have a more "linear" in feel. Given what people here say that the MMT shaft is modeled after dynamic gold steel, it's possible that MMT has a softer feeling handle section that may be off putting to some. By no means is it a bad feeling shaft. Just not ready to have it in the rest of my irons. 

 

Also agree with Stuart above that weight (total or SW) could be part of the issue. 

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Cobra Aerojet LS 10.5* - Hzrdus Black Gen 4 60 6.5 / Aerojet LS 3 - AD TP 7X / SZ Tour 5 - AD TP 8X / Apex 21 4H - AD IZ 95X / Cobra Tour 5-P, RTX6 50 M KBS $ Taper HT S+ / 56F - KBS 610S / 60M KBS Hi Rev 2.0 S/ White Hot OG #7 CH / Maxfli Tour

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I'm sure Stuart and others are sick of reading this, but offering it anyway...

 

An idea I'd read in Dave Tutelman's writings on heft.  He suggests if you are reducing shaft weight, you can add 1/3rd of the weight reduction back to the clubhead in an effort to create a reasonably similar feel in the swing.

 

Such as one can do while dropping possibly significant static weight, of course.  😉

 

I have done this with my own clubs.  Had been playing a set of DGS shafted MP37s at D2 to D3.  Have a set of Golden Rams with NV105 shafts, some 25g lighter than the DGS.  I added about 8g to the clubheads, which worked fairly well.  It's not a perfect substitute for the static weight change, but I found the irons more playable and consistent at D6-D7 with the 105g shafts.

 

Edited to add:  picked up an MP20 HMB 2i to use as a 2i/1i above my iron sets.  It came with Steelfiber i95, so I increased the the swingweight on it an extra point or two above the Golden Rams mentioned to compensate.

 

Edited by NRJyzr
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The Ever Changing Bag!  A lot of mixing and matching
Driver: TM 300 Mini 11.5*, 43.5", Phenom NL 60X -or- Cobra SpeedZone, ProtoPype 80S, 43.5"

Fwy woods: King LTD 3/4, Rogue Black 75X -or- TM Stage 2 Tour 3w, NV105 X -or- TEE E8 Beta 12*, Rogue Silver 70X
Hybrid:  Cobra King Tec 2h, MMT 80 S -or- TEE CBX 17*, HZRDUS 85 6.0

2 iron:  Arias D-23, Modus3 120 S; Mizuno MP-20 HMB, NS Pro 950 R

Irons grab bag:  1-PW Golden Ram TW276, NV105 S; 1-PW Golden Ram TW282, RIP Tour 115 R; 2-PW Golden Ram Vibration Matched, NS Pro 950WF S; testing: Arias D-23 5i w/Modus 120 S
Wedges:  Dynacraft Dual Millled 52*, SteelFiber i125 S -or- Scratch 8620 DD 53*, SteelFiber i125 S; Cobra Snakebite 56* -or- Wilson Staff PMP 58*, Dynamic S -or- Ram TW282 SW -or- Ram TW276 SW
Putter:  Snake Eyes Viper Tour Sv1, 34" -or- Cleveland Huntington Beach #1, 34.5" -or- Golden Ram TW Custom, 34" -or- Rife Bimini, 34" -or- Maxfli TM-2, 35"
Balls: Chrome Soft, Kirkland Signature 3pc (v3), Wilson Triad

Grip preference: various GripMaster leather options or Star Grip Sidewinders of assorted colors

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