I'm shooting an Hoyt Ultramag at 70 lbs and 29.5" draw with a Trophy Taker rest. I'm using Gold Tip 75/95 arrows at 29.5" with 125 grn tips and 5" helical feathers. When shooting bare shafts, they always hit about 5 inches left at 20 yds. My broadheads are about 3 inches left at that distance as well. Walk back tuning indicates a good center shot, and minor adjustments to that doesn't bring the groups any closer together. I'm thinking that I am over spined a bit, but before I buy new arrows, I'd like to know if there is anything else that I can try. Any help would be appreciated.