Feed more often with small rat or less often with larger rat

[Rusky]

Are you feeding a pup or a fuzzie? A pup should keep a 90 gram snake fuller longer than a fuzzie......

Actually that's my fault, they are pinkies, I did see a bigger fuzzier rat in the bag but most of them are pinkes. So maybe they are small for her, I'm thinking I should try to see if she will take 2 in one feeding.