I agree that a cut on contact head will cut through flesh better than the muzzy, but if the muzzy did that to the plywood what would it do a deer if the shot is not perfect. Any broadhead will kill if place in the right spot. Will a magnus cut thru bone or shatter it like a muzzy? If I remember bone is much harder than flesh. Not every shot you make will be perfect. Sure the magnus will make a bigger hole and better bloodtrail, but what if you pull the shot and hit the shoulder what happends then. The magnus has so much cutting surface it will cause friction like it did with the wood in my test. Not saying magnus wouldn't do the job, all I 'm saying is that I want a little insurance if I screw up. I practice every day and am very confident with my shot but one never knows what will happen. If your shooting a heavy arrow at high poundage any broadhead will do. Bottom line the muzzy will go thru flesh like butter, it will also go thru ribs, shoulders and anything else it touches, can your magnus do that? Wheither it's a chisel head or a flat blade like magnus both will go thru flesh, but what about the mistakes we make? I what something that will do the job no matter where I hit him.