Makes perfect sense killer! The closer you are to the middle of the lungs the more damage you will do to the lungs. Thats why high lung hits, or just nicking a lung on the back side tend to go a little farther at times. You can't beat a perfect broad side shot at the lungs but a quartering away shot does give us more room for error. Slightly quartering away is my favorite shot. All in all though don't try and hug that shoulder to tight, you will not penetrate that knuckle.