I have killed deer with Thunderheads, Muzzy, Wasp, and now Rage... they all performed well..I went to Rage this year to see what all the hype was about...they aregood, but the deer were no more dead than they were with the muzzy.. seriously, I wanted to have good flight and destroy the deer, it did both, but I still think Muzzy head are the best heads out there.. just my opinion about Muzzy.