I feed my non-breeding adult females every two weeks, and my non-breeding adult males every three weeks. This basically matches the schedule that they put themselves on when every snake used to be offered a rat weekly. After reading about FLD I decided that I wasn't doing them any favors by overfeeding, and the vast majority of snakes are overfed in captivity anyway. Some people would call this "maintenance feeding" since the snakes aren't really growing at a fast rate any more.
FWIW to get back to the breeders I know of with the tiny babies, "maintenance feeding" meant "just enough to keep them alive". It's done strictly to save money, not to prevent health issues due to overfeeding.