I'm a firm beleiver in Murphy's Law when it comes to deer hunting. I do my best to set myself up with as few things possible that can go wrong. I keep my bow simple, not a bunch of fancy gadgets, fancy gadgets can fail. I shoot fingers, they don't fail, get left at the truck, or dropped on the way to the stand. I use fixed blade broadheads, if they fail the only reason for it is poor shot placement. I know that mechanicals are deadly, and prob will kill a deer quicker and more humanely than a fixed with proper shot placement and when working correctly, but again, one more thing that can go wrong!