Split limb, I am by no means a pro bow technician but here is something to check. I had the same sight. When you loosen the two bolts for vertical adjustment there is alot of play and that part of the sight can be tilted back and forth. I think they did this intentionally in order to level the sight pins to the bow. I would check to see if your sight pins are level with your string by holding the bow in front of you and sighting down the string. Your pins and string should be visibly level with each other. If they are then you might be canting or tilting the bow which causes the same problem.Do you use the level on the sight when shooting? I don't know if this will help but good luck.