My Hog Island ate 60-100 gram rats when he was under 500 grams. Now (not sure how much he weighs) he eats 100-150 gram every 7-10 days depending on what is available. Yes he has a nice lump but it is gone in a day or so.
I had 1 regurg and that was after an adult asf due to me fussing with him too much afterwards getting him out of his separate feeding container. Now I feed him in his cage because of that.
Did you get the other Boa off of craigslist?