Energy dump is a myth. I don't like making blanket statements, but two holes are always better than one. I kill a lot of hogs a year with handguns, and if you do your part, and the handgun is loaded correctly, bigger normally works better -- unless it's a small animal that really doesn't require a lareg caliber. Of course CNS shots are not caliber dependent.
I agree. Energy doesn't kill. Holes in vital organs leaking massive amounts of blood do. Energy just goes along for the ride.
I prefer innies and outies.