Recent Mizuno irons not as soft as the old?

This might be an unpopular opinion, but compared to mizuno forged irons I played in the past, both the JPX 900 tours and MP18 didn't feel as soft/buttery to me. Is it just me or do the recent Mizunos feel denser/clickier?

It's the boron

It's the boron

JPX 900 tours have boron and that might explain it, but the MP18s also felt clickier compared to MP 64s I hit side by side. (Although marginally softer than the JPX900 tours)

I AGREE. I haven't been impressed with a MP iron since the MP15 and MP53 before that

The 900 Tour don’t have boron; I play them. The 900F do have boron.

I felt the 18s were soft and comparable to the MP4 which I felt were one of the best feeling irons by Mizuno.

As for my 900T, they aren’t as soft as the MP64 which they modeled off but performance wise, the 900T are ahead at the expense of a little softness.

As for softness, there can be something as too soft that can be dislike by some like myself.

It's the boron

 

JPX 900 tours have boron and that might explain it, but the MP18s also felt clickier compared to MP 64s I hit side by side. (Although marginally softer than the JPX900 tours)

The Boron models definitely don't feel as good. It's one of the reasons I've kept my older JPXs.

I AGREE. I haven't been impressed with a MP iron since the MP15 and MP53 before that

I feel EXACTLY same. Mp52 was something special. I haven't seen mizuno iron as good as that since, in terms of soft feel alone.

Mp18 was let down. I so was jpx 900. Jpx825pro was buttery.

Found the same thing. MP5s I had were soft, then the 900T. The new MP18s def. have a 'clicker' feel to them.

It ain’t the Boron

Last real soft feeling true MP was the MP5.

My 53s feel better then the 900T and the entire 18 line.

Edit: That said, Bridgstone (Endo) Forging puts all of them to shame. My J15 are the softest feeling CBs (non boutique) irons on the market.

The 900 Tour don’t have boron; I play them. The 900F do have boron.

 

I felt the 18s were soft and comparable to the MP4 which I felt were one of the best feeling irons by Mizuno.

 

As for my 900T, they aren’t as soft as the MP64 which they modeled off but performance wise, the 900T are ahead at the expense of a little softness.

 

As for softness, there can be something as too soft that can be dislike by some like myself.

 

 

How did the 900s outperform 64s for you? I found them to be less forgiving.

Play a softer ball. A chrome soft or the like can make Pings feel like Mizunos.

I agree, they are still soft, but they're not like they used to be

Mp5 was just perfectly soft. However, they all bow down to the glorious divinity of the feel of the mp14

I'm going to go for a REALLY unpopular opinion, but I wasn't impressed with the feel of the MP-18's I hit at all - I could barely feel the ball being struck, which was strange. They somehow turned a range rock into a Penfold Commando, dread to think what they'd be like with a proper ball.

Tried a set of Vega VM-01's afterwards, now THEY felt awesome. Right combination of heft and smoothness. £1500 more awesome than my trusty old Nikes? Not a chance, sadly.

My mp54s feel softer than anything I've ever hit. Makes me want to try some of the older stuff to compare. Being LH, can't try everything unfortunately.

Its the clique

The 900T just gave me the optimal launch and spin rate over the 64 and 18s as much as I prefer the looks of those mentioned two over the 900T; so I took performance over looks and softness.

Not that I disagree with the OP on Mizuno’s line up, but this whole discussion on softness is literally overrated. I’ve hit ping cast irons and they felt softer than Mizunos and Miura, and who is to say no when you can pure it?

The 900 Tour don’t have boron; I play them. The 900F do have boron.

 

I felt the 18s were soft and comparable to the MP4 which I felt were one of the best feeling irons by Mizuno.

 

As for my 900T, they aren’t as soft as the MP64 which they modeled off but performance wise, the 900T are ahead at the expense of a little softness.

 

As for softness, there can be something as too soft that can be dislike by some like myself.

 

 

 

How did the 900s outperform 64s for you? I found them to be less forgiving.

there is a massive difference in feel from my Mp25(Boron) to Mp5(no Boron).

I hit the new Mp 18 mb and to me there was not much difference to the mp5 except the Mp18 8/9 looked far nicer.

Interesting to see what the new JPX Tour will look like at address.

I feel the 18s are definitely softer than the 25s! Then again maybe I'm just striking them better and have a different shaft!

there is a massive difference in feel from my Mp25(Boron) to Mp5(no Boron).

 

I hit the new Mp 18 mb and to me there was not much difference to the mp5 except the Mp18 8/9 looked far nicer.

 

Interesting to see what the new JPX Tour will look like at address.

The 25 and 5 are a different clubhead design so you can't attribute the difference in feel to the boron in the 25s. Unless Mizuno makes two identical clubheads, one with and one without boron, no one can definitively say that the boron is why they don't like the feel of a certain club.

there is a massive difference in feel from my Mp25(Boron) to Mp5(no Boron).

 

I hit the new Mp 18 mb and to me there was not much difference to the mp5 except the Mp18 8/9 looked far nicer.

 

Interesting to see what the new JPX Tour will look like at address.

 

The 25 and 5 are a different clubhead design so you can't attribute the difference in feel to the boron in the 25s. Unless Mizuno makes two identical clubheads, one with and one without boron, no one can definitively say that the boron is why they don't like the feel of a certain club.

True but that won't ever happen.

Even when there was major design differences between models of old (mp5, mp52, mp64 etc etc) that soft feeling was universal among those. But something changed and it went away.. for me, since mp15.

Glad to know I wasn't the only one feeling like this. I was scoffed at when I brought this idea up. Scrw them.

I’m of the opinion that boron does not change the feel to any extent we can feel. They use something like .0003% boron. Plus I don’t think a company that prides themselves on the saying “nothing feels like a mizuno” would use boron if it meant sacrificing feel. I truly believe it is the design or shaping of the clubhead that changes the feel.

I think this is a bit nit picky if I’m being honest. If you don’t think a mizuno blade feels good then your choices of irons are going to be quite limited. I’m not saying mizuno is the softest out there but they are certainly up there.

Mp5 was just perfectly soft. However, they all bow down to the glorious divinity of the feel of the mp14

MP14 were soooooo gooooood.....

I thought the same thing 10 years ago. My 29s have a soft solid feel that my 32s and my step dad's H4s don't. My T-zoid pros fit right in between my 29s and 32s feel wise. They are all perfectly good clubs and feel good, just a little different.

I have owned MP-4, MP-54 and JPX 900 Forged. When struck IN THE MIDDLE the difference between the 3 is hardly noticeable. You can't judge feel of a club on off center shots imo.

Softest so far has been MP-54. I've hit the MP-25's and they were not as soft, not even by a mile. Same with JPX900F.

Love my 790's... not exactly soft but I don't get that clicky feel I got with others. I'm not in the iron market and I love how forgiving my 790's are but I'd love to give some J15's a go.

I have a set of the MP4's and a MP 32 2 iron and I must say when u make solid contact with that 2 iron nothing feels better.

The Boron increases the tensile strength of the metal allowing them to reduce the thickness of the face. A super thin faced iron is not going to feel soft and solid like a thicker forging. They don't need additional strength in a solid forging so it's not added. The clickiness of the Boron infused itmrons comes from the design, super thin face, not the material. I still play MP54's, which are super soft, but you can tell a difference in the irons with the milled slot. Milled slot on 54's is thick compared to the MP25 and 900F (which had to be milled from the bottom).

IIRC, the JPX series have the boron in them, which might contribute to the difference.

I'd say if the classic Mizuno feel is a priority, the MPs are the closest you're going to get.