If you really want to hang with a world champ bodybuilder go ahead and enjoy. I can't imagine an experienced trainer learning any thing. These guys are champs because of drugs, genetics and hard work.
You have to read Robbie's biography. He grew up in the deep woods dirt poor. He won a lot of bodybuilding championships without drugs when he lived in the deep south and I believe him. He's one of those life time muscular guys.