I was planning on shooting the easton axis 340 with 100 gr. heads. Now I'm considering shooting 125's, but I don't know if this will work with the 340. Should I maybe go to the 400? Assume that both arrows would be fletched with feathers. My setup is a razortec, 66lb, 29.5 draw, drop zone rest, and d-loop. I don't have a problem shooting either setup, just wondering what would "theoretically" work better. Thanks