I am just going to add that feeding during a shed is not risk free. There is a slight chance of a shed becomming stuck at the stomach where the rat is (especially a large meal) and the snake not being able to monuver it over the rat in its belly. The shed can become dry and shrink and force intervention it can result in a serious health risk. It is very rare but has happend in fact a member here had this happen. I mention it so you can weigh the risks involved yourself. For me there is no gain so any risk is not worth it.