Okay.. Well my bow is pulling 64 lbs and it's a 28 in draw so I took the advise of the Easton Website.. Today I bought a dozen and a half of the Axis Obsession 400's (9.8gpi) and cut them at 28inches. I switched broadheads from Muzzy 3 blades to Montec 3blade 100grain.. The Montec fit those arrows much better, they didn't really hang over on the bottom's like the Muzzy's did..