Hi, My arrows are doing a cork screw effect before hitting the target. I shoot a Hoyt Alphaburner(65#) with 7595 gold tip expedition hunter. The rest is a QAD ultrarest hunter. I hadn't noticed this until i started shooting one of my arrows with an aluminok in it and it showed up big time. I started paying attention to my other arrows and they are all doing it. Any idea whats causing this?