Deerslayer - If you read the last statement in my post I did say that I will continue to use them on deer because I have them. But now I know that I may not get a complete pass through -particularly on a quartering away shot which was the case here.
I will not use them for anything bigger than whitetails because I may not get the penetration I desire. A good size bear or a mature bull elk is a much larger, thicker animal and with a quartering shot there is quite a bit more tissue to go through. My opinion is 2 holes are better than one for trailing. I would hate to hit any larger animal a little high, not go completely through, bleed internally and have a very difficult if not impossible blood trail to follow.