Haha yeah my BP girl doesn't like to eat medium rats either. She eats a couple and then quits eating as well. I just feed her a small rat every 5-7 days, about the same schedule as Caesar. She pounds the small rats. Kind of funny your BP is the same way.

As for the hides, looks like LLL medium hide is the same size as the RBI large hides. Think the RBI large ones are 13x10x3. So that makes sense as to why mediums work still lol.