I agree with you also Rob for the most part. Look at the size of the killing zone (vitals- lungs, liver, heart, guts) behind the shoulder on a deer. Compare that to the size of the killing zone on the head of a deer. Huge difference! At least If a hunter misses the lungs on a deer (shoots to far back) he's got the liver and the guts that will take this deer down and kill It. You miss on a head shot, you've got a deer running around with his lower jaw dangling around. Odds favor the lung shot with more room for error.