I've had the 910 d2 driver now since last summer. I hit it really far and I just put a new shaft in (RIP 70 g xstiff). I used to have the stock diamana shaft in it. The one problem I've had with the driver is a ball flight that seems a little too high; especially into the wind. The new shaft has helped some but the ball flight is still fairly high unless I deliberately try to keep it down. I want to know your thoughts about this and whether or not the d3 really produces a lower launch than the d2. I have read that it should be a little lower but I want to know from people who hit the driver. If it does go lower I, I could probably get a d3 head and put it in my current shaft. Thanks for your thoughts.