I have been doing a lot of thinking on this subject of late. I always hear, and see in pictures, that most hunters seem to aim right behind the shoulder. I would contest that this is not the ideal spot to aim. If you drop back off the shoulder just 3", then you give yourself that much more room for error. If you aim 3" back from the crease, then you can miss forward or backward by a few inches and you will still be in the lungs. However, if you miss forward while aiming at the crease, then you greatly increase your chances of hitting the shoudler blade and not getting good penetration into the body cavity. Obviously shot angle (quartering to or away) would play a role in the exact ideal shot placement, but I am refering to broadside shots in this instance. Just some food for thought.