I think it is a matter of determining what we are calling the shoulder. Tell me if this is correct......The scapula is connected to the shoulder joint which is connected to the elbow. The three together make a > shape. If this is correct then I always thought the elbow was the shoulder. So I thought the best place to shoot it was right behind the elbow which I thought was the shoulder. Actually, I know a whole bunch of misguided people who think that way as well.