While developing the Mizuno Mp 63 irons, Mizuno tapped their tour team to blindly try out various new concepts. The winner, reportedly unanimously, was the "Diamond Muscle" design, the latest in the line of "muscle" themes Mizuno has used in recent years, beginning with the Cut Muscle clubs, continued with the Dual Muscle MP-52 and 62, and last year's Dual Muscle Titanium MP-58 and 68. Longer irons in the set are slightly larger than the compact short irons and feature deeper cavities to enhance forgiveness and precision through the set. Another way to say that is that the long irons are easier to hit than long irons in other player's sets that have the same club head size as the short irons. At address, there is nothing to distract your eye. To me, the 3-iron looks impossibly thin, but I've been playing Titleist AP2s for two years and there is a big difference in the amount of club you see between those models.


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Taylormade Burner 2.0 irons
Ping G20 driver
Titleist AP2 710 Forged Irons
Ping G15 Fairway Wood