I plan to purchase a set of AP2's but I am debating the best shaft. I am trying to decide between the TT Dymanic Gold S300 and the Project X 6.0. My 6 iron swing speed was measured around 90-95 mph...Consistently around 94 mph.
I'm leaning toward the Project X 6.0 becuae I want to reducce my spin.
My specs are 2 degrees upright and +0,5"...Will the extension change the stiffness of either shaft in any way?
The extension of .5" will not change the stiffness. It will change the swing weight. Both shafts are good for reducing spin. The DG is a little heavier than the Project X. You have very good club speed,so you can handle the weight. My suggestion would be to try both shafts before making a decision.