I have had good luck with Innova Evo Red Meat Small Bites for my Fanconi Affecteds but neither of them were/are in kidney failure nor picky eaters. It is definitely a small kibble. Do you use canned food also? I use a meat based protein-Beef, Lamb, Venison, etc. for that as well. Perhaps adding a few tablespoons of canned food would help. Perhaps you could mix the Bil-Jac with another dry food and she would eat it.
Are you a member of the Fanconi Group on Yahoo? Perhaps someone on it has suggestions for other dog foods to try. There is lots of advice for pilling.
How is Haley doing on the protocol? Since she is a picky eater, do you have any problems giving pills?
Jennifer