The idea that you have to feed a certain % or a certain set feeding schedule is silly. Snakes don't have that in the wild, if he's acting like this- give him a big meal, let him sit on it for a few weeks. Usually gets them to calm down for several days after taking it, and then by the time they come down off the big huge feed, they are calmer and not so jumpy. More frequent and small feedings make them jumpier in my experience, the small meals are just not filling enough for them to realize they don't have to hunt and eat everything that moves in fear of going hungry.