A lung hit is a lung hit IMO. A deer wont go far when both lungs are punctured. They are dead essentially whenever you hit them, it just depends on how far they run in that period of time before they collapse. Most people that prefer the lower lung hits want the blood trails, but even you guys would agree that a double lung hit is a dead deer, is a dead deer, is a dead deer...right? All kill with the same lethality, its just how quickly and how much blood you find.