GFD2, not me that will using those 2-blades but my buddy is hooked on them. Here's the tale of the tape, I lost a nice buck to the Rage 3-blade head, which I only used 1 season, the shot looked great frontal mid body high/low. I found one of the blades missing from the head and the buck never went down finally loosing blood trail. My buddy has lost 3 deer to the 3-blade Rage, two of the deer were nice bucks. I have not lost a single deer since going to the muzzy MX3 heads. I have not have had a marginal hit to guage the Muzzy with but whatever works you should stick to. I have used Muzzy heads for many years now and for me they work!