I go through feeding spurts with my snakes depending on how many rats and mice are available at the time. I'm trying to balance out the supply and demand but there is still somewhat of a surge of feeders followed by a lack thereof. I don't record sheds on my snakes but I do notice that if I am feeding a lot of rodents in a short period of time (usually to use them up before they get too big) a lot of my snakes shed within a week or two of a heavy feeding cycle. I'm pretty sure the more you feed the more they shed. I had a couple ball pythons that fasted for about eight months, neither one went to the bathroom or shed, I suppose that's pretty much a maintenance free snake LOL.