Will these "geometric" imperfections (I assume you mean something like a
bent shaft?) affect the shaft's performance, and should they be taken into
account in shaft alignment?
Bernie
I did some testing with a tour pro as my subject and it was a blind test and I had him going crazy trying to get the ball to fly straight and the only difference was a rotation of shaft 90 degrees each time and all i was doing was moving the curvature of the shaft to different positions and they were not the same as S1 and NPB marks so I definitely feel that there is something more than just spine and npb. In fact I just made two Infiniti AW 1 irons with graphite shafts and need to turn them 180 degrees as they have the tendency to hang right.
CharlieB
