I've never competed. But I would think practicing your posing every day would condition your body better as far as the whole flexing too hard thing goes. Maybe Wes can speak to this. I would wager Brian isn't going to practice his posing at all.
Remember how Brian was shaking so hard when measuring his arm recently?
All I can say is that I hope that`s not what he does on stage......he looked like he was having a seizure as if flexing unto you shake like an earthquake is gonna` make it actually bigger.
As far as practicing a routine....he`s too lazy to invest the amount of time necessary to present himself in the best light.
Posing is a workout in itself and it would more than likely be harder for him than any of Hankys actual "workouts" themselves !!