What is your experience with "rebound" post contest? I started hitting it heavy out of the gate. Massive amounts of food. I'm currently 230. Biggest I've ever been. But on fat and tons of water but to really take advantage of it I feel you have to really make a surplus of carbs.
It is mostly psychological. You've been starving your body of certain nutrients and it's trying to recover by building up a reserve in case you decide to starve again. In other cultures besides bodybuilding, it is know and Yo Yo dieting. If you look at some past bodybuilders, like Bill Pearl, they claimed to stay within 10 lbs. of contest weight by eating clean year around. This is probably healthier, but it is also darn hard to maintain.