Wayne, at the risk of sounding like a "know-it-all" I will throw in my couple shekels of advice. I would weigh your broadhead/arrow combination to be sure that you are at the 450 grain mark and not less. If your numbers are correct that would give you around 76 lbs of KE. Many hogs have been killed with a lot less, and certainly skinny carbons have a great reputation for penetration. I have killed game with each of the heads you have mentioned but I will say that the hammerhead wreaked more devastation and tissue damage than the others (and why wouldn't it with a two inch cut). It sounds to me from your description of your hog hunts that your shot placement is the biggest culprit working against you. Even on good shot one might not get a decent blood trail on a hog so you have to take out both lungs and /or the heart to take them down quick. Any of the broadheads you mentioned will do that if put in the right location. Often times angles are hard to judge and what would seem like a double lung hit isn't always the case. Even seeing one end of the arrow doesn't always give one an accurate reading. Without seeing both ends of the arrow an illusion can be created leading one to believe it was a great hit, when in fact it may not have been.

In answer to your penetration/devastation question, I like a good blend of both. But really the bottom line is... if you put a broadhead square through both lungs of any animal, it is not going to go very far. It doesn't matter whether it is a one, two, three, or a four blade head...they all cause the animal to "kick the oxygen habit" pronto!