I used a G5 Montec for my Bison hunt. The trick was is you had to make sure that the arrows and the broadheads matched up and spun straight. The Archery shop I go to has a little tool that helps make sure the broadheads seat propery against the insert which made my arrows fly considerably better. I can shoot my broadheads at 40 yards and keep them in almost as tight of a group as I can with my field points. Pretty much any good cut on contact will work though. I prefer a one piece solid construction personally. I also like the 3 blade design. Triangular wounds are less likey to close up. You don't actually need a complete pass through either. As long as it goes in and cuts the lungs, heart, or main arteries you're good to go. Again its a Bear hunt so pretty much any setup that you like for Whitetail will do a decent job on the Bears. Have Fun and Good Luck!