I personally don't feel that Bowser has an over roached back. You don't even see it when hes trotting around the place. It's only when he's got his head down (like drinking water or sniffing the ground) that you see a slight hump at the top of his back and a bit more exaggerated roundy bum.
I actually think it's the fact that he and Juno run around together everywhere and she's got such a board straight back that make his little roach more noticeable.
I must admit, I get sick of the "he's gonna have hip problems" comments I've gotten from people who have no experience with GSDs whatsoever.
~ Juno ~ 25/10/11 ~ GSD
~ Bowser ~ 07/10/12 ~ GSD