This might be something alot of guys do, but most people I show have never seen it. Why I dont know its very simple. I started shooting a biscuit several years ago but couldnt get the speed I wanted and would also get some funky flight. So I got out the razor blade and the chrony. I gained 6fps in about 5minutes. Some guys might cuss me say it wont work, say its been done, just plain gripe about the biscuit. Some guys do shoot them though and this will help.