Steve, You ought to have seen some of Holes I used to Blow through Deer with the Ol Thunderhead 180's Awesome!! The most awesome kill I ever witnessed was with that head. I shot a nice 8 point in late Rut as he was tagging a yearling doe by my stand. The sun was just setting and it was around 10 degrees. After I shot the Buck he ran pretty much straight West up a hill and I swear he was Blowing Red Steam 3 feet out both sides.
Well for a little while he was.
Went down pretty darn quick. I've had a couple of nice Bears fell to that head also. Idefinitely prefer 3and 4 blade heads.
Dan