I have used braining and found it to help alot. I take a knife and cut a small slit in the top of the rats skull and squeeze out some blood and brain juice. For some reason my normal girl who wasnt interested in f/t seemed very interested after that. Shes at the point now where i can just place the f/t in the tub and she comes over and eats it.

I think im going to try your method for my pastel girl jinx.