So I am 55. 14 handicap. Not as long as I used to be. So I decided to let technology help. chose the PXI 6.0 shaft. hit a 5 iron 195 today. Then a 6 iron 185...wow. All pin straight! wish I could take all the credit. Gained 1.5 club with the new ap1 shaft combo. BTW..the PXI shaft is just awesome. great fit to the club.