If you followed TR, it would allow you to increase faster and possibly by larger amounts. The sooner you can get a kitty into tight regulation, the better the odds of remission. However, Rex would have to be on 100% wet food for you to use TR. Maybe something to consider when you've finished the transition. The other requirement would be getting at least two tests per cycle, one at preshot, and one in the middle somewhere. Since TR is more aggressive, you need to do a little extra checking to make sure it's safe to do an increase.