Shot one deer with em. It did its job but was sticking a few inches out the opposite side, when the deer fell it broke the broadhead piece off the screw in portion of it. Not sure if thats really a problem with them but I wasn't very happy about it. I still plan to use the other two I have though.
To sharpen em I use a file. I just go right over that front chisel point. Grinds it down a bit but I can get the rest of the blade much sharper by doing so.
I plan to try some grizzlies next. I hear good things and there around half the price.
-Chris