Well man ive been shooting for 19 years only 13 have been hunting..It also depends on the draw weight of your bow. The higher poundage and faster fps the more chance the arrow has of planing which is the blade of a fixed blade broadhead almost act as a wing, This meaning your fletchings arent controlling your arrow. For expample on my 50-60# bowtech commander I shooting 85gr muzzy's.. On my 70lbs darton I use rage 3 blades. The slower the bow and lower FPS id recommend a fixed blade. The faster higher draw go with a mechanical. Its something ive been dealing with at my friends archery shop for 13 years. Hope this helped if you need more info email me [email protected]