I've heard a lot about the Magnus heads, but haven't had a chance to try them out yet. I've been using the Rocky Mountain Adavantage heads since the year they came out, and they haven't let me down on 11 deer. A few of them went through shoulder blade on the exit, and one went through BOTH shoulder blades and buried in the ground on a 41 yard shot taken on a doe during a stalk and didn't even crack a blade!