I had 755's with tri spec shafts, titleist co. was kind enough to swap out the 755 heads to ap2 heads but kept the tri spec shafts in the new heads.  my questions are;  1) what is the stiffness of the tri spec shafts, 2) do the tri spec shafts compliment the ap2 heads 3) my ball flight is very high with this setup should I go to a true temper shaft to produce a lower trajectory. P.S. I've never been fitted  whats the cost.  hank You in advance for your help.