the past 2 years ive shot Muzzy heads...shoot them all on the arrows they will live on and make sure they all fly true....when it comes time for the hunt, i just swap the dull blades out with new ones out of the package...

after the hunt, i just swap the dull ones back in to target shoot with....

that way there is no guessing. each head stays on the arrow its on...ive had different heads fly differently on certain arrows...had some arrows that just didnt like broadheads on them period(probably an insert problem) just find it "worth it" to make sure each arrow shoots well with its broadhead. and havent found changing blades to effect flight....i just throw all the dull blades into a case and randomly put them on..no order there...but havent seen that effect the flight...