Scott, Read the multiple current threads by Dr. Ashby: the Grizzly often has exit cuts in an "L" shape caused by the twisting of the head from both arrow rotation and the single bevel grind. Theoretically, this motion cuts more than a double ground head (hence the "L" shaped wounds vs. simple slit from other 2 blades). Lots of interesting thoughts, opinions, and now, even some data on this issue.
As far as this new head, looks like a STOS to me, but I'm kinda simple. I do like the STOS though, guess this would be just as good, maybe even better if the single bevel rotational cuts prove to be more fact than anecdotal.
There are soooo many good heads out there, it would be difficult to purchase a cut on contact head that didn't perform well these days. I am trying to kill a big game animal each with a different head this year: goat with a woodsman, bear with a deadhead, ? with a razorcap, ? with a Stos, ? with an interceptor, ? with ? (whatever else I may come across). I now typically carry 3-4 different broadheads in my quiver cause I've found ALL the ones I shoot will perform well on anything I would ever hunt.
Get em sharp, put em in the right place, and there are a bushel basket of heads that will perform.