I have been demoing both the 910 D2 driver and 3-wood and I'm looking to purchase both. Should I purchase the same shaft  for both? I haven't been fitted but I have tried both the Aldia RIP shaft and the Diamina Kai'li shafts and couldnt really tell which is best for me. I have a pretty low ball flight and have a smoother tempo swing. Any suggestions on shafts and whether or not they should be the same or a good fitter in the Boston or Cape areas? For reference, I use a Mitsubishi Blue Stiff shaft in my 909 19 degree hybrid and I really like that. I'm also an 18 handicap