I've read most of this thread, and IMO a frontal shot is never a high percentage shot. I've killed several critters with everything but a crossbow. I took one frontal shot on a doe once, put the arrow exactly where I wanted it to go, and she did die.
looking back I shouldn't have taken the shot, yeah it worked but had it been different just a little bit it would have been bad news. I go with the odds, and a broadside shot trumps all. and really it has nothing to do with how confident you are with your shooting, you shouldn't even be out hunting with a bow if you can't put the arrows where you want them. but expecting nothing to change in the split second from the release to impact is wishful thinking at best. animals move, they raise or lower their heads, they side step, something could make them turn, you name it. chit happens. granted not all the time, but it can and does. I'm not about to risk wounding a deer or elk because of that factor.
