That's what I've been doing, every 5 days attempting f/t until last attempt which was live. I conversed with the breeder who says he doesn't keep feeding records but she was without food for at least 2 weeks before she was shipped. This is 4 weeks without any food, no feeding response and seeing the lil girl's spine sticking out is definitely causing me to worry.
I'm considering having her assist fed at a really great pet store in town on Monday.