Feeding once a week is not maintenance feeding. Most people I know feed their babies once a week. Some feel that every 5 days is too much. Feeding every 5 days is ok, depending on the species. Some species that stress more as babies benefit more from stretching out the feedings a little.
My babies (both Cornsnakes & Carpet Pythons) do very well on 7 day feeding, & are growing at a good rate.
I sometimes vary mine, ranging 5-7 days apart for feeding babies, but for the most part, I feed once a week. My adult males get fed every 2-3 weeks depending on species & prey size.
Edit to add: Autumn's link is definitely a MUST READ for anyone new to BP's