Im shooting a Bowtech Allegiance 29 inch draw at 67 lbs, and Easton Exel 400s with 2 inch Blazers,100 grain broadheads, and lumenocks total arrow weight is 400 grains give or take 2 or 3 grains either way.As I was sighting it in the other day a guy was shooting his through the Chrono and wantedme to shoot mine through it, I shot and it was 294. I dont know exactly what a fixed blade head will do at that speed, so I may take a few more pound off.