I would guess that I was out of tune before. That was the first time I had paper tuning. In the past I just got the bow from the shop when I bought it and made sure I could zero it in. If this bracket goes on easily then I should be right back in business but this time knowing that I have it tuned and zeroed.That’s crazy. I would say if nothing else changed but the rest you are either out of tune now or you were before. Either way the sight must have barely worked before. Good luck. Me personally if the bow is tuned well now I would change the sight before messing with the bow. I only use one pin for hunting anyway.