For crying out loud, TEST ONE!...not just the practice blades.

I use the Snypers..same head and I've shot 5 bucks with them with tremendous results HOWEVER,

They flew perfect for me, they did not however fly perfect for a friend of mine.

You are crazy if you don't test fire any broadhead your using and not just rely on what others have said....test one...use dental floss to tie the blades shut, I used a 1/16" wide piece of electrical tape around the blades and they still opened...I almost couldn't keep them shut unless I really, really wrapped them.

TEST THEM!