I personally use Kay coble. I am in the process of Traing Tyah buit she is doing WONDERFULLY. I put there hay in the litter pan as a treat for them so they can eat and do there buisness at the same time. A good thing to watch for is what corner they go to the bathroom the most in. Then move there litter pan there.
I posted in Pet Health some other tips that might help you out!
Ash
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