after 5 shots link goto eastons homepage and download their bow tuning guide. follow the steps for "broadhead tuning"

if followed and all works out properly you should beable to randomly choose FP arrows and BH arrows and nail the bullseye with them reguardless. it can be a pain....but its well worth it. i can practice with FPs in the season...saving me from dulling BH blades and chewing up a BH target any farther...i declair 1 BH my practice BH and shoot it on ALL my arrows to make sure they all fly true. even months later i can still shoot both...kinda surprised me...figured something would move!

also your arrow spine has to be good or you have heck getting good arrow flight...just something else to think about. if thats good all it will take is verrry slight adjustments to the rest and/or nock to fine tune...i thought it was a miricale to have BHs and FPs hit together at first....seemed impossible for a while..