I was recently fitted for a 915 D2 with Rogue Silver 60 stiff shaft set to D1. My swing speed is 105 and I was hitting it great during the fitting with a nice penetrating ball flight. Averaged 270 yards with tight dispersion. But being a cheapskate, rather than have the club fitter build it for me for $400, I bought a used one for $200. The used driver has all the same specs and is set to D1 but I am hitting it quite a bit higher. The only parameter I'm not sure of on the demo driver was the weight. The one I bought has the standard red weight. Should I experiment with changing the weight to lower the ball flight? The other possibility is that I was teeing it higher on the range today due to those stupid rubber mat tees. Please comment on both scenarios. Thanks!