ORIGINAL: Ray Hunter 42

Well im kinda glad this was posted. Like i now everything thats in those picture off the top of my head except for one thing. I was always told to shoot right behing the shoulder. Acourding to those pics if you shoot for the center of the shoulder you should double lung it. Am i right?
Or does every one say shoot behind the shoulder so you dont have to go threw all the meat that the shoulder has in it?