I do not want to get on the bad side of any fellow hunter, but you can’t fight the laws of physics and the animal direct link in getting air into the lungs is the mouth. When damage happens to the pump station the lung or what’s left of the lungs begin to fill with blood and not air, so in order for the game to try and get air in blood is sprayed on exhale. Holes will deliver blood but not as much as people think, holes also clot and blood trails thin out and sometimes stop. But never when you take out the lungs and the key word is lungs. This is also why blood trails start getting real heavy after a few jumps of the deer. In my experience I would rather cut and do the most damage possible inside the game instead of punching out a small broadhead like 1 ¾ inches or less through both sides.
I want an overwhelming amount of lacerations to happen when the arrow is in that body to drop the game fast even when the hit is not as perfect as planed, and not a bad shot just off the mark 2-4 inches.