Ok guys I was shooting my muzzy 100's today and for some reason one broadhead inparticular flew 4 in to the right. So I got to looking very close and here the one that was flying wild the little black tip that screws down to hold the blades in was not lined up with the blades and on the other 3 broadheads the black tip was lined up. So I took a pair of pliers and spun it even with the blades and bravo problem solved. Now I have def realized that the blades do not need to align with the vanes or feathers on the arrow but they must line up with the edges on the pointed tip of th broadhead. Just thought I'd share that with u guys.