My girl was on an all rat diet from the day I got her till she went to live with my friends for a little over 1 1/2 yrs. They bred ASFs and she ate them just fine. Wehn I got her back she was on reg rats again because they fed off and sold their ASF colony. She had no problems. She's even eaten a chick or 2 while with them. I do feed her in her enclosure but when she was younger I fed her in a separate enclosure. She will eat what ever you give her if shes hungry. So the theory that a bp wont switch back is false.