So I can't comment on the R but Jimmy is definitively running flat. I'm guessing you'll have to climb back up the dose ladder a bit. I have a question about the raw food. Does that mean its zero carbs? The reason I ask is I questioned the zero to very low carb diet and wondered if maybe a little more carbs would help. There is even a post on it here
http://www.felinediabetes.com/FDMB/threads/feeding-lowest-zero-carb-vs-lower-carb-foods.144220/
I changed from the FF pates 0-2 carbs to the FF chunky variety which are 4-5 carbs. I did this a few days before starting Lev. Did it help? Very possible. I read that even in the wild cats eat other small animals that have eaten greens so its in their system. I'm a firm believer in everything in moderation and if Jimmy is in fact on zero carbs maybe adding something to it to give him a few carbs may help with his BG numbers??
Just my thoughts and wanted to share