I have heard great things about both. I use the slick tricks and I have experienced great arrow flight with them and I haven't tried the Muzzy's out yet. If you do get the slick tricks, go with the magnums (bigger cutting diameter). There is a guy on archerytalk.com who is an authorized slick trick distributor that is selling them for $23. I just ordered some and got them in the other day. Very, very fast shipping.