Nearly a month since I started using Litter Kwitter to get my cats to do their thing on the toilet. It is going pretty well actually. My cats are up to the green tray now. They had some difficulties this week. Notice to the right of the below picture, I had to move the stool and kitty litter bag to the right of the toilet. I did that to keep my cats from doing their thing on the drain. I had no idea why they were doing it until I realized that my dog was bothering them while they were on the toilet. I keep her upstairs now and they got back to normal.
Two more weeks and I think they will be fully trained!
(Up to Green now)