I have a new Hoyt Vulcan. I put a Muzzy Zero Effect arrow rest on it. I have had very good results with the rest before. My bow seems to be shooting very well, but i am noticing smooth spot apperaring on my mole skin and a black mark starting to form on my down fletching. I hat to mess with anything due to the fact that is shooting good. Should I raise my nocking point a little to get clearance or is there another way I should try?