I've never taken a bear with a bow, and use mechanicals for deer. Though, if I were targeting bears, I'd definitely go with a fixed blade, cut on contact. Bears have a lot of hide, fat, and muscle, and the bigger wound channel and blood trail, the better. My buddy has taken a few with the G5 Montec, but I suppose that any quality head and a well placed shot will do the trick. I wish I was going with you. Best of luck.