After talking with a few other breeders last year. I fed all my undersized snakes on a 3/4 schedule. Which for me was Monday and Thursday. My smallest when from 1050g in July to 1530 in December before she went of her winter fast.
The other 2 I had at the time went from 1200 to 2000+.
This is NOT power feeding. Power feeding is sticking a PK/FT meal in the snakes mouth as they are finishing swallowing another meal. Basically it's an unnecesary force feed.
Unlike boas, BP's will not eat just for the sake of eating. When they've had enough they stop. I have never heard or see of an overweight BP.