Going on my first spot and stalk archery bear hunt in a couple weeks and was wondering if anybody has any recommendations on broad heads for bears. I know I need to get something with smaller cutting diameter than my whitetail broad heads, but I don't want something that is so small that it is just going to piss him off and not take him down since I will be on ground level and pretty close to him. I am at 70#'s and 28.5 draw. Chronograph averages around 293 FPS with a 410 grain arrow. For mechanical broad heads I am only interested in ones with forward opening blades (like the nap spitfire or grim reaper BH's have) and which don't use rubber bands or little plastic breakaway rings to keep them closed (or fail to keep them closed). As far as fixed blades go I am pretty much open to any suggestions. I have never used them before simply because every single deer and coyote (plus a couple possum and one really annoying squirrel) I've ever hit with a mechanical broadhead has ended up completely dead so I've never really had reason to switch, but a deer's ribs, skin, and bones are a lot less substantial than a bear's so I could see how a mechanical would be more likely to break or get stuck in a bone when shooting a bear. There is also the fact that a wounded deer is a lot less likely than a bear to try and run me down and eat me if my mechanical broadheads were to fail for some reason.