Sometimes in cases like this, I try and balance out the hunger/prey size issues by offering 2 smaller prey items that add up to the appropriate sized ones. Typically this ends up being colubrids that I do that with, but 2 of my bps have been making me use this trick a bit.

I have one snake that should be eating small rats but because of some scarring from an injury, we eat 2 mice instead. It still adds up to about the same weight wise... but gives less stretch and concern of regurge.