i have two titleist drivers. one is the 907d2 and the other is a 983k. recently, i have had trouble geeting off the tee with my 907 and switched back to my 983k. since the switch i have had no problems with tee shots. my 983 has a graffalloy pro-lite stiff shaft, but it doesn't give me any more specs on the shaft. i am thinking about replacing the shaft in my 907 with the same graffalloy shaft thats in my 983. where can i get the specs on this shaft. i have tried the graffalloy web site and they show the shaft that i want, but i need the correct specs in order to get the right shaft. can you help me?