New baby BP / First time snake owner question

[200xth]

Within 1 sitting? I've heard that feeding them more than 1 prey item is just extra stress, why wouldn't I just step up to the next size? I'm not trying to power feed him, I eventually want to breed him, but that's when I have more funds available. I just want to keep him healthy.

It's more convenient for humans if they move up in size. I don't think they care either way if they get 1 rat or 3-4 mice as long as they're getting enough to eat

Stay within reason though. 15 rat pinkies at once would be kinda goofy.