I am still messing w/ my setup for broadheads. My field points are perfect w/ really tight groups. When I shoot my broadheads, they are less than perfect and the groups tend to spread. I shoot they arrows w/ broadheads and sometimes I will have a good group and sometimes I will have one arrow out to the right or low. I really think it is me since I sometimes have good groups and sometimes not. I am thinking it might be a little target panic. By the way I am shooting 65# @ 31.5 w/ 300 carbon express & 125 thunderheads. I have also tried 100 muzzies.