That is not my view of his mount but here is a pic that probably better illustrates my point ... you must know this guy... mind you he is a trappie who can only shoot a very limited variation of targetsI am a really lowly C class shooter who does not get out enough so please read the following comment in that light!
The American in this picture may be world class for all I know but for me the stock looks too long! The butt seems to be more near the top of his arm than in the pocket of his shoulder. He appears to be straining forward from the look of his neck and the line of his shoulders looks to be almost in line with the gun or at a very acute angle rather than more square to the line of the gun.
So the end of his cheek may be at the point of the comb if that's important but I don't see it as a relaxed, comfortable position and it looks forced to me.
Does anyone else share my view?
Most outstanding shooters will make anything work and I once saw Barry Dagger pick up a rifle from a student who was berating it as he had a crap score and Barry proceeded to shoot a brilliant score with no jacket, sling, glove etc and the rifle not adjusted to him, just to prove there was nothing wrong with the gun!