I don't think you made your snake picky, some just prefer mice to rats. I'm not sure how long you'll have to scent your rats if that's what you want to feed him. You could always offer more than one prey item if that would be easier than scenting rats.
Feeding at my house is interesting.
I have two BPs that will eat anything (my normal and spider), I don't even think it needs to be warm. They are the easiest to feed, but my spider has to have it offered to him. If it's not dangling in front of him he doesn't know what to do. I accidentally dropped the rat pup when I was trying to feed him the other day and he kept coming after me looking for food not realizing it was behind him. When he finally realized I didn't have it and he found it, he managed to bite him self instead of the rat.![]()
My two spotnoses don't know what to do if I offer them food. They just get scared and strike at it defensively, so I've learned all I need to do is drop it in their tub and they can figure it out from there.
And last but not least my pastel yb is a pain to feed. She won't eat if I leave in her tub over night, and she's really not to happy when you try to feed her. It took me 3 feeding attempts to figure out how she wanted to be fed. Basically you don't believe her when she strikes defensively, she'll eventually ball up and then you have to hold it above her and she eventually realizes it's food.