I also feed all my younger snakes every 5 days when they start to refuse then I move them to a 7 day schedule. I dont see it as power feeding they would eat even more if I would let them alot of times they start looking for food 2-3 days later. In my opinion power feeding is making them eat more than they naturally would on their own. I also think if you start to notice one is getting obese which to me is when you can see the skin between scale you should cut down on the feed but I have never had one that got obese they just grow at a faster rate in length and weight. I have also had some of mine gain 800+ in one year.