but I don't think so. I recently replaced my i10 irons with AP2 712, and switched from the 20XI-X to the NXT Tour S Yellow. Since these changes, I have been striking the ball better than ever. I have shot my lowest overall round (82), and my last two rounds have included a front 9 of 38 and a back 9 of 39; having never shot less than 41 in the past. My goal the last two years has been a single digit handicap. I am now confident this will be accomplished before too long. Thanks for making the best golf products, period.