RE: More lethal: Hi Lung or Lo Lung?????
I agree with Art on this one(You don't mind if I call you Art do you?). Definately better blood on a low lung hit.
As for the question of which is more lethal? A dead deer is a dead deer. Which is easier to recover would be my concern. And a low lung hit= more blood(better blood trail)=higher % of recovery IMO.