[bambam]

which component has the most influence of increasing driver trajectory, shaft or loft? I play a 9.5 head, and thinking about going to a 10.5 or a lower kick-point shaft.

BUT, I do not want to significantly increase spin.

Any ideas?

My driver ss is 109 at last testing.

There's another good thread on this topic elsewhere on the site. I'll try to find it later if I have some time but you can probably search for it pretty quickly. Per Jeff's advice, the magic combination for me was a higher lofted head with a heavier or stiffer shaft. A stiffer and/or heavier shaft will decrease spin, so you can add loft and increase your launch angle. I found it hard to find the heavier shafts for demo and ended up in a 10.5 head with an X shaft that produces pretty good numbers and nice trajectory. Would like to try an 11 degree in a heavier shaft for comparison sometime.