"Well to be honest with you, I have recommended to Georges, you know...the only reason I don't recommend it now is because Frankie Edgar is the champion, but I'd want him to move down to 155 if Frankie was not the champion. Obviously we're part of the Renzo Gracie team and we'd never fight Frankie Edgar, because obviously we're all Renzo Gracie fighters. But if it wasn't the case, you know, I'd rather him go down to 155 because Georges is not a very big welterweight. People might think he is, he's actually not very big. And him making 170 is extremely easy for him.
Honestly, it's probably one of the easiest weight cuts from all that I coach, and I coach a lot of professional fighters. Georges making 170 is getting a little too easy for him, so I'd recommend to him in the future, who knows what the cards hold, but if we don't have a team member that's champion or anything like that, I would recommend him to go down first before going up."
http://www.bloodyelbow.com/2011/10/...s-st-pierre--move-to-155-iras-zahabi-mma-news