I was about to buy some but I hated that they were talking about an awesome "stretch cut" which simply sounded rediculous. If my knife is stretching the meat before it cuts its a problem not a feature. Turns out that the dull part of the blade blocks half of the sharp part.
I read some tests that rated it below my cheapo shwackers. That and the price of $18 a head (15.00 + shipping) I said no.
Let us know if you like the head you get! I keep hearing great things from magazines etc.
Just killed a nice sized doe tonight with a sevr 2.1. Hit top of heart, she was in a cut bean field and ran maybe 50 yards and I watched her pile up. There was very little blood trail except for where she fell there was alot. I guess if you watch them drop blood trails are a moot point !! I was using a Tenpoint Vapor RS470 with centerpunch arrows. Hit HARD and fast at 43 yards. There was a nice entry and exit wound. I'll keep using them to see how they continue to perform, but with watching her drop I'm pretty happy so far.