If you want a B that eats with consistency you want to feed a small prey once a week, if you feed large preys while they can take them they will likely skip the following meal and the next, BP will also fast to catch up.
Even the biggest females 3500 grams or more do not need anything larger than a medium rat once a week, male don't need anything larger than a small rat once every 7 to 10 days.
The main issue in captivity people are over feeding than they will complain that their animal fast, there are also animals that have been diagnose with fatty liver disease. It's important to remember that they don't need as much food as we think they do and that their metabolism change tremendously from hatchling to adult, and finally because they can handle something big does not mean they should or need to.