I was fitted for 910 D2 driver at fitting day by a Titleist rep, but with no launch monitor. We compared to my current 909 D3 8.5 with Titleist Voodoo stiff shaft. I have smooth tempo swing at 87 mph. I was fitted with a 910 D2 9.5 Diamama K'aili regular shaft. The discussion was that this combination delivered a better trajectory. But I have lost at least 20 yards in distance. I went to my local Titleist fitter, who fit the 909, and got on the launch monitor. The launch angle is 12-14 but a spin rate of over 4000. The 909 combination launches similarly a spin rate below 3000. In order to get the spin down we tried a stiff K'aili shaft, a regular RIP, and a 910 D3 8.5 head. No combination has been able to get the spin rate below 3800. Can you give me a recommendation on what shafts to try at our next session to get the spin down so I can use the 910. Thanks Steve