I have a curious question about these shafts. Are the Score LT’s stiffer in the shorter irons, 8,9,pw vs the longer to mid irons, 4,5,6? I ask this because it seems to me that I have read some things regarding parallel tip iron shafts where this is the case since they all come from the same length blank and all the irons are tip trimmed the same amount, say for a stiff flex, and then butt trimmed to desired length, let’s say Golfworks standard. That means that you would be bringing the butt end of the shaft closer to the tip end “progressively” for lack of a better word, and with it getting shorter, wouldn’t that make it stiffer?
It is important to understand that all steel shafts start out as parallel tip. Once they are produced, the tips are pulled or swedged down to be .355 taper tip. When you trim a shaft from the butt end, you are trimming from the stiffest end of the shaft (larger diameter is stiffer). That is why, on parallel tip shafts, you trim progressively from the tip and butt as you progress through the set. This trimming is necessary for consistent feel because of the progression in head weight and length. Even on constant weight taper tip shafts, the tips start out as parallel and are reduced down. The difference is they will produce multiple lengths that are the same weight, instead of one blank that is trimmed to length. Obviously a one length blank, parallel tip shaft that you trim from the tip an butt end can not end up as a constant weight set.