I had simular thing with a lesser female. she would only eat mice but would always take two each feeding. so I started scenting rat pups and she wouldnt take it. after several trys I gave her a small mouse first then the scented rat pup and to my suprise she took the rat as the second food item. 4x of mouse then scented rat then 2 or 3 times of just mouse scented rats and now shes hammering f/t rats before i get them all the way into the tub. on the other side of the coin ive got a 4 year old normal male that only eats mice and im lucky to get him to eat every third week. He's tipping the scales at a whopping 622 grams. i've never used him for breeding he's sorta my personal pet. I rescued him from terrible conditions as a baby. good luck and happy herping