I havn't shot the G5 Montecs but from what I have heard, you can't go wrong with this b-head. I have seen some pics of tests that people have done with these heads and the results are amazing. one guy I saw shot one into a solid steel beam that was 1" by 5" and the tip of the head just bent.

There are other great heads out there.... the Muzzys and Thunderheads are some proven b-heads and these two heads have probablly killed more animals than all other b-heads combined!