Mizuno MP-4 irons
A new terminology has emerged in the forged-iron lexicon, according to Mizuno: the Luke Donald sole. The newest Mizuno iron with the signature sole is the MP-4.
Donald long has been preoccupied with the interaction of the sole and the turf. Give him a forged iron and a grinding wheel, and he becomes a golf surgeon. The sole has to be perfect. It has to glide through normal turf without digging or bouncing. It has to have just the right amount of camber, or roundness, in the sole. It has to be just the right width.
Mizuno started selling the Luke Donald sole on some of its MP family of forged irons. MP is Mizuno's designation for tour-oriented clubs. Mizuno MP-62 irons have the Donald sole. So do MP-64 irons, which are currently used by Donald.
The Donald sole is for skilled players. An average golfer might want a sole with slightly more bounce to add versatility for a variety of conditions and lies.
Now comes the MP-4.
In the opinion of Mizuno’s director of golf club marketing, Chuck Couch, the new iron is a “pure club, intended for purists, as in feel, trajectory control, ball control and turf interaction.”
Furthermore, Couch said, “it also means how the club looks.”
This means a traditional Mizuno shape, with a really thin top line (10 percent thinner than other recent MP irons) and a muscle pad on the back of the iron, intended to place as much mass as possible behind the impact zone.
These irons, now available at retail, cost $999 for a set of eight clubs with True Temper Dynamic Gold S300 steel shafts. The standard grip is the J-31 Mizuno grip from Golf Pride.