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Danny Lee’s Mizuno MP-32 irons: The real inside scoop!



Hipsters are known for loving “old” stuff — you know the classics, the vintage, the retro. From vinyl, to thrift store sweaters, what’s old is new again. In the case of Danny Lee, he’s leading the charge as the PGA Tour’s iron hipster.

It should also be noted that “old” is a relative term, especially with golf equipment. Now when it comes to “classics,” Mizuno has produced some of the most recognizable irons of all time, including the Cut Muscle MP-32 released in 2004.

We recently spotted Danny Lee at the Genesis Open and it started a LOT of discussion about classic designs, as well as whether these are new old stock (NOS) or new forgings, using the original tooling.

I reached out to Mizuno’s Senior Club Engineer Chris Voshall to get to the bottom of this interesting iron development. (Plus the idea that Mizuno has sets of 10-plus year-old irons kicking around ready for custom builds — I have a huge smile thinking about what that storage room might look like — is a pretty fun thought).

Heres the inside scoop on Danny’s irons from Chris Voshall

“The MP-32s being played by Danny Lee are a new old stock set that came from Luke Donald’s personal stash inside the tour van. The ones Danny is playing are the very last set of custom grind 32s that were made for Luke.”


“Here’s the part that makes the Danny’s set unique – During final development of the 32s, Luke was feeling that the soles for him were not getting through the turf the same as his previous MP-33s, but he loved the profile and extra forgiveness offered by the cut muscle design.

“By working with the Craftsman on the Mizuno team they created a unique sole profile for Luke that modernized that of the MP-33 for his new MP-32s. They rounded off and beveled the trailing edge of the 32s and had multiple sets made that he used during their entire run in the line.

“The tell tale of the Luke soled irons vs. the retail and standard version is how close the trailing edge of the sole is to the “Mizuno” on the back. What’s even more interesting about the development of that sole and grind is that every MP iron moving forward in the line starting with the MP-62 in 2008 utilized the exact sole profile of the one developed with Luke for the 32s and then 62s he used to become Number 1 player in the world.”

Below are comparison pics of Danny’s irons vs retail MP-32s and MP-62s

Danny Lee’s LD Grind 32s

Standard MP-32 7-iron – notice the amount of space above the “Mizuno” text

Right – MP-62 vs Standard MP-32

Danny Lees LD Grind 9-iron

Retail MP-32 9-iron

MP-62 9-iron vs retail MP-32

WOW! How cool is that insider information? True 14-year-old prototypes back in play on Tour! Now we know 100 percent the real story behind this very cool set and how it lead to historical Mizuno design changes that we still see in the MP line today!


NOTE: All Mizuno forged irons pre-2010 meet the 2010 USGA Conforming Groove rule; they were conforming before and are still conforming now. This is also part of the reason you don’t see many other classic irons on tour, except for maybe some from Ping which did do a few older models with new grooves –most notably D.A Points’ i5s irons. 

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Ryan Barath is a writer & the Digital Content Creation Lead for GolfWRX. He also hosts the "On Spec" Podcast on GolfWRX Radio discussing everything golf, including gear, technology, fitting, and course architecture. He is a club fitter & master club builder who has more than 16 years experience working with golfers of all skill levels, including PGA Tour professionals. He studied business and marketing at the Mohawk College in Hamilton, Ontario, Canada, and is the former Build Shop Manager & Social Media Coordinator for Modern Golf. He now works independently from his home shop in Hamilton and is a member of advisory panels to a select number of golf equipment manufacturers, including True Temper. You can find Ryan on Twitter and Instagram where he's always willing to chat golf, from course architecture to physics, and share his passion for club building, and wedge grinding.



  1. Simms

    Mar 20, 2019 at 3:44 pm

    I think the only problems these companies have re-introducing older models is it only works for a very small amount of the club buyer’s (no Profit) plus it does detect from some of the power of being able to advertise all the improvements in the newer clubs. There are some older clubs out there that have held up to the best the R&D’s have come up with lately…one would be the Callaway steelhead fairway woods they brought back.

  2. Jim Hayes

    Mar 11, 2019 at 3:36 pm

    Love my MP-32’s. Best irons I’ve ever played. Truly incredible distance control. High flight stops quickly on most greens. If they would ever bring out he MP-32’s again i’d Buy several sets. They are simply the BEST.

  3. Bill

    Mar 10, 2019 at 12:51 pm

    I am STILL playing my MP32 irons (left handed set!) They soft and very workable!! BUT, I did lose 1 club length on them. they are worn and I am ready for a new set ( Francisco Molinari’s set up is just about what I want).

    I was playing the HOGAN APEX FTX set! I really loved playing both sets,but, if you gave me only a choice of one of them, it would be the FTX set. They were soft, workable AND had a thin top line, a PERFECT muscle back with a true players iron look, not too much offset and the 8 to wedge were Blades!! A real combo set designed as one set. The best part — They were LONG!!

    To anyone who would really like a great players iron set, If you could find a set, used but very good condition, these would be great, at a very reasonable price.

    Note: these are square grooved, old PGA rules(they may not be legal on high level tourney)
    and I did replace to shafts with Dynamic gold x100.

    • MBU

      Mar 29, 2019 at 4:03 am

      I lusted after Hogans before they made them left handed, and i bought the FTX’s when they came out. I didnt appreciate them at first, it was after a 6 year lay off. But now, having bought other irons, nothing feft softer or better when struck properly. I still have them, and use them occasionally.
      I may just put the 8,9,pw back in my bag…

  4. Matt S

    Mar 8, 2019 at 1:24 pm

    So did this relief increase or decrease the bounce?

    • Justin

      Mar 27, 2019 at 3:15 pm

      The bounce angle wouldn’t be affected if the trailing edge was grinded down. It is like the new wedges having different “grinds” and the same bounce angles.

  5. CJ

    Mar 4, 2019 at 7:27 pm

    Those irons are gorgeous oh my. That grind would be a hot commodity if they came to retail I think

  6. Jeff Spain

    Mar 4, 2019 at 10:06 am

    I’m 67 years young have played Mizuno MP 33 for years . I bought a custom set of Titliest AP-1 thinking I needed more forgiveness “old man clubs”, they felt like Nothing, no feedback at all. I reshafted my 33’s with Nippon pro 850gh for lighter slower swing. It’s like hookling up with your high school sweetheart, Love Them Again

  7. Jake

    Feb 22, 2019 at 1:36 pm

    I might be just reminiscing, but the MP-32 sure looks a lot like the Wilson Staff ‘Tour Blade’ irons I bought in th mid-1970’s and played through the 80’s. Those irons had a really sweet feel.

  8. Mario

    Feb 22, 2019 at 1:22 pm

    Best looking irons ever. Easier to hit, shape the ball like a MB, beautiful to look at

  9. jgpl001

    Feb 21, 2019 at 3:38 pm

    I absolutely loved mine many years ago and could still bag them now

    They had enough forgiveness to be really playable and they felt brilliant

    One of the best irons of the past 20 years

  10. Anthony Parham

    Feb 21, 2019 at 1:03 pm

    I have a set of MP 32s and I love them, I did the same thing they did for Luke on my short irons and they play great.

  11. Scott

    Feb 21, 2019 at 10:29 am

    What about the grove change since 2004? Are the old groves grandfathered (i.e. Ping clubs)?

  12. Billy

    Feb 21, 2019 at 10:02 am

    Are they coming to retail?

  13. Roger

    Feb 21, 2019 at 10:01 am

    Did Chris Voshall make any comment if remaking the MP32’s (or updated version) could be produced in the future?

  14. Michael Buell

    Feb 21, 2019 at 7:39 am

    I recently went back to the T zoid after trying newer Mizunos and Taylormades. I first regriped my old set then found a mint, almost unhit set on eBay. My game has improved.

  15. Rory O Donnell

    Feb 21, 2019 at 2:20 am

    What’s with Mizuno releasing ‘blades’ with thick top lines – bring back the MP33 iron. It has been their best iron ever.

  16. James

    Feb 21, 2019 at 1:20 am

    What does the writer mean about pre 2010 clubs conforming to post 2010 rules? Is he saying that some pre 2010 club don’t conform today?

    • Dan

      Feb 21, 2019 at 3:06 am

      Yeah. Basically. They changed the rules above groove shape and depth because tour players were getting incredible amounts of spin, even out of the rough.

  17. MW

    Feb 20, 2019 at 11:42 pm

    I have 6 sets of MP-32s. The look, the feel, the performance in my opinion has never been matched.

  18. Sean Fennessy

    Feb 20, 2019 at 10:27 pm

    Are the MP-54s any good ?

    • John Hennessey

      Feb 23, 2019 at 12:06 am

      I still play with the mp-54s, recently saw 4-people for sale at A$500 in Sydney. They are not long, but oh so accurate. I play of 12, so good for mid handicappers. Grab a set if you get the chance, just be prepared to hit an 8 iron when others might smash a wedge.

  19. Liongolfer

    Feb 20, 2019 at 10:02 pm

    Interesting. Never donned on me that heel relief will help that much with turf interaction. I’ve always focussed on leading edge, toe and heel relief. The tour mp32s look much nicer than the already nice retail MP32s… don’t reintroduce these…let the cult classic status grow.

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All-new Srixon Q-Star: Spin where you want it!



If there is anything I have learned in the past year about golf balls, it’s that they are packed with more technology and chemical compounds than most people can comprehend. A lot of premium boundary-pushing technology is found in, as the name states, the premium ball category, BUT Srixon is bringing the same tech found is the Z-Star line to the masses with the fifth-generation Q-Star, priced at $26.99 a dozen.

So, what am I talking about when I say chemistry? How about Spin Skin with Slide-Ring Material (SeRM for Short). SeRM is a urethane coating with flexible molecular bonds (how many times do you think about molecular bonds when talking golf ball?). This flexible coating digs deep into grooves for more control and more stopping power.

When we say “control” we mean friction. Friction is extremely important in golf is because the more you can create with your scoring clubs, the more control you are going to have around the greens. Where does all this chemistry come from, you might ask? In case you didn’t already, know Srixon is owned by Sumitomo Rubber Industries — a world leader in rubber technology including tires. Hmm…I think if a company can find ways to increase friction on a tire on a car going 100+ MPH, there must be some type of parallel there…

When you consider that most average golfers miss a LOT of greens, and often times in the wrong places, having a ball that offers a bit more control than the standard two-piece ball means you can (hopefully) stop it closer to the hole. And if I’ve said it once, I’ve said it 1,000 times: The closer you golf ball end up to the intended target, the lower your scores are going to be.

Another way of getting the ball closer to the hole is distance, and the Q-Star isn’t lacking in that department either. By utilizing Fast Layer Core Technology, meaning the core is softer in the middle than around the outer layer [think of it like a symmetrical round muffin top (drool…mmm…muffins)], they can create a ball that is lower compression, feels great, and spins less off the driver without sacrificing the oh-so-important distance. Don’t forget that less spin off the driver ALSO means less axis tilt (often wrongly communicated as “side spin”) creating shots missed left and right.

All off this technology wrapped up in 338 dimples, available in both white and yellow.

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Forum Thread of the Day: “What has made it into your bag so far in 2019?”



Today’s Forum Thread of the Day discusses new equipment that has made it into the bags of our members so far in 2019. From new club additions to shaft changes, our members share the tweaks they have made so far this year and divulge what has been successful as well as what has failed to work for them.

Here are a few posts from the thread, but make sure to check out the entire discussion and have your say at the link below.

  • Jackal66: “Went from 816 DBD Alpha driver to M3. Changed Odyssey Fang putter to Scotty Cameron Newport putter. Bought a 56° wedge and it is competing with my 53° Diadic.”
  • ObiwanForAll: “Gone all in with TaylorMade clubs and UST shafts.”
  • macedan: “Successes- Ping G400 9*, thought the smaller head size may hamper my confidence, but It has performed beautifully. Mizuno ST180 16*, No words, performs as needed and looks absolutely sharp. Middle of the road- Ping G Crossover 21*, unfortunately, I fell into a swing slump across the bag not long after buying it. When my swing is on, it is one of my absolute favorites in the bag. My biggest complaint is just the appearance of the massive amount of offset.”
  • pollock21: “Been quite a year…TS3 knocked out my trusty G400 LST which was quite a feat. Now shafted with 130 Rogue Silver. I500 w/LZ 7.0 125’s experiment is on the way out. They’ve been excellent irons for me, but I just hit them obnoxiously long. Currently looking for my next set. Also dabbling with a hi-toe 60 to replace my trusty 60* Glide 2.0 stealth. So far, I’m loving it. Last change was putting in the copper spider x which knocked out my ketcsh and scotty newport 2.0.  Failed experiment so far with the flash sz fairway. Putting the trusty 16M2 back in the bag. Definitely moving on from the flash, I’m just not as consistent with it.”
  • shanx: “Took a lesson late spring and my ballstriking has improved. I ditched the Callaway X20 Pros, Cally X Forged ’07s, added Mizzy MP15s with C Taper Lites. Not sure if those shafts will work for me in the long run, but I am going to play them for a bit as I am still working on swing changes from the lesson. Rotating three drivers (2 Titleists and a Callaway Epic), thinking about going to get fit for my driver soon.”

Entire Thread: “What has made it into your bag so far in 2019?” 

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Whats in the Bag

Chez Reavie’s winning WITB: 2019 Travelers Championship



Driver: TaylorMade M2 2017 (9.5 degrees)
Shaft: Aldila Rogue Silver 60 TX

3-wood: TaylorMade M5 (15 degrees)
Shaft: Aldila Rogue White 130 

5-wood: TaylorMade M5 (19 degrees)
Shaft: Aldila Rogue White 130 

Irons: TaylorMade P-790 (4-iron), TaylorMade P-750 (5-PW)
Shafts: KBS C-Taper Tour 120

Wedges: Titleist Vokey SM7 (50-08F, 54-08 M, 58-08 M)
Shafts: KBS C-Taper (50), KBS Hi-Rev 2.0 (54, 58)

Putter: Odyssey Works No. 7

Ball: Titleist Pro V1

Grips: Golf Pride Z Grip cord

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19th Hole