I only feed appropriate sized meals once a week, hatchling to adult...with the exception of breeder females, which get fed roughly every 5 days from mid summer up until they start pairing. There have been no comprehensive studies done on ball python feeding in regards to what is too much, so there's no real way to tell if a 4-5 day feeding schedule over a 7 day schedule has any positive or negative impact or has no effect at all. IMO, being fed every 7 days is more than sufficient.