Male competitors step on stage at what? 4, 5% Bodyfat? After the show, even if the guy "reverses" 100 kcal every 2 weeks back to his new, estimated TDEE - he ain't staying at 5% BF. You will put on some fat no matter what - don't worry about it - you cut it off next time. You can cut 1, 2, 3lbs...