Conclusion: Mizuno MX 200 Iron Set 4-GW with Steel Shafts : The new Mizuno MX 200 irons with Y-tune technology are a quantum leap in game improvement design. Y-tune technology extends and expands the sweet area of the clubface out toward the toe to deliver amazing forgiveness on mis-hits.
Summary: Bought these irons back in July and was **** buy a Mizuno rep. I was playing Taylor Made irons prior and after hitting these I changed immediately. These are terrific irons. They are long and consistant. I am a 12 handicap but I feel these should help lower that handicap to single digits.