As you are well aware proper training, cardio, and diet is crucial in being prepared in a bodybuilding line-up. Knowing how to properly implement each can give you that extra edge against the competition.
Many bodybuilders preparing for their bodybuilding contest do so haphazardly. They end up losing muscle and holding fat. At the last minute they realize they are not in the condition they should be and they implement last minute “tricks” to try to come in harder.