From what I' ve heard about InnerLoc, the blades don' t seat in the grooves very tight. They wiggle.[X(] That could cause some group problems for you. I' m currently trying to decide between 2 heads for this fall. My tried and true Muzzy 3 blades in 125 gr. and the G5 Montec, also a 125 gr(3). I like the G5s a lot, but at around 30 bucks for 3, I don' t know it I want to spend another 100-120 for enough of them for practice and hunting. Most My broadhead practice is for leagues into dirt and sand butts. That plays hell on those cut to tip style heads. You can resharpen them, but not after you hit a couple small stones. The Muzzys on the other hand, take a lot of abuse. You can change out the blades and tips, both of which I have plenty of. I' m not a big fan of 4 blade heads. Just think it retards penetration. Not a good thing since I plan on using them for moose this fall. My 3 blade Muzzys clipped two ribs on a moose and kept going. Whats your draw weight and arrow size? Might make the choice a little easier. Whats the reason you want to change?