I've heard about the curling problem, and a review on these type says to file the point down a bit to a triangle to avoid curling (making it kind of a puncture point). Seems like a tough broadhead though.

I went with Steel Force BH this season, but didn't get a chance to put them to the test. Had a cousinloose a bull elk with one (out of a compound bow). He swore by the SF heads before this, but the broadhead hit the shoulder area a bit too forward, and had no penetration. He picked it up to find a curled point. Made me wonder about my SF heads after that story.

I think that curling may be a problem with most cut-on-contact type broadheads.