[Trig]

I recently hit a demo Proforce V2 shaft and really like the feel. I believe I'm going to go with this shaft in a new driver but I'm not sure which model to get. From the USTS website I see this (sorry for the formatting). I'm guessing there is no way to know which model is best without hitting them all. Any ideas?

Spec Information
MODEL WEIGHT TORQUE LAUNCH ANGLE PTS BUTT FLEX MID FLEX TIP FLEX TIP OD BUTT OD LGTH
5500 A 52g 4.5 High 4.0" 230 5.5 20 0.335" 0.610" 46"
5500 R 53g 4.2 High 4.0" 243 6.3 22 0.335" 0.615" 46"
5500 S 53g 4.2 High 4.0" 261 7.1 24 0.335" 0.615" 46"
6700 A 63g 3.8 High 4.0" 241 5.8 23 0.335" 0.600" 46"
6700 R 64g 3.8 High 4.0" 256 6.4 24 0.335" 0.600" 46"
6700 S 65g 3.7 High 4.0" 270 7.1 26 0.335" 0.600" 46"
6700 X 66g 3.7 High 4.0" 285 7.7 28 0.335" 0.600" 46"
7600 R 74g 2.8 High 4.0" 257 6.4 24 0.335" 0.605" 46"
7600 S 75g 2.8 High 4.0" 272 7.1 26 0.335" 0.605" 46"
7600 X 77g 2.8 High 4.0" 286 7.8 28 0.335" 0.605" 46"