Zradix Im not saying they arent matched, I was just asking if that could be my problem? I buy all my shafts from 3 rivers, tapered or parallel. It just seems that every 4 (or so) arrows fly true. I can grab my GT carbons and every one flys true. Makes me wonder if I am really getting the spine I ordered, or if buying finished shafts from a reputable arrowsmith is a better plan. For the record I shoot a GN Bushbow, 45# @ 28 and I pull 29". It has a FF skinny string with padded loops. I have tried 55-60, 60-65 and 65-70 spines with about the same results from each size range. I have read alot about people saying they get 3-4 good shafts out of each dozen they buy, am I in that boat?