I think I got lucky..
When I got Anubis, she'd only ever eaten live.
I feed her f/t now and she just has the best feeding response I've ever seen. I barely have it dangling over her for 10 seconds and she pounding it back

When I still had my boa, she was another story. She would only eat live rats. I tried offering her f/t many times, and she would just ignore it.