So im kinda new to all these purebred issues and honestly first time owner of an AmBully xl. I know he's not standing as he should but what your seeing is basically how he looks regardless of his posture. I know there is sway back, high rear and roach but im not that familiar in which it would be and what they mean for my dog in the short and long run. Any information would be appreciated and his age in this photo is 13 weeks old about 38lbs. I'm only feeding his his coloric requirements. Not trying to bulk him or add Weight at all.