I was fit this spring hitting off trackman for the 917D3 9.5* Driver in the Fujikura Speeder Pro TS 64 Stiff and the 917D3 15* 3 wood in the Fujikura Speeder Pro TS 74 Stiff. During the summer I was hitting both clubs fairly decent, driver was around 280-290 and three wood was 245-260. In the past month or so, my 3 wood has really come into it's own, I'm carrying about 260+ with a total 275-290 and I have even hit a couple just of 300. But my driver doesn't perform near as well. I've hit a couple on a rope that were well over 300 but in general, it seems to fly shorter than my 3 wood and the consistency isn't anything close to the 3 wood.
Any thoughts on why this is happening? Do you think the driver shaft is misfit?