The catalog list L-A-R-S flexes. What would vary between the flexes more? Kick point or torque? Would most of the difference between A and R be the 3 g in shaft weight? I've gotten A flex 65 shafts on my AP1. Will need to get a video and strike tape, but I'm getting some pull with more practice this spring. Hoping I don't need to reshaft to R flex.