I've never understood why any bodybuilder would want to diet clean, makes no sense at all to me
I understand the thought process -
Get lean without gear = Drop loads of bodyweight
Jump on a big cycle = massive increase in bodyweight
or -
Jump on cycle and get lean - not that much increase in bodyweight (but usually a dramatic change in physique)
Stupid bodybuilders are obsessed with numbers rather than what they look like in the mirror (hence all the bloated pigs around today)