Since Fall of last year I have used AP2 irons, a Scotty Cameron putter and a 913 d2 driver. I noticed that I get a reasonable carry with the driver (235 to 245), but not much roll, so I went to CoolClubs and had them look at it using Trackman. The backspin on individual drives ranged from 4300 to 5500. The launch angle is 13 degrees. The driver shaft is a Diamante 72. I love the look, feel and sound of the driver, but I need some roll. The CoolClubs people have tried to sell me a TM (spin 2500 during the test with an Acura 55 shaft) , but I am not consistent with it and hate the sound. What can I do with my beloved 913 to lower the backspin? Should I adjust the 9.5 to 8.5? Would a different shaft solve the problem?