I haven't had a chance to get back here, I'm so sorry that he has slipped some, but so glad to hear that he still has quality. It's such a tough balance, and you have been doing such a great job <<hugs>>
For raising the bowl, you might be able to find a flower pot with the right size opening and height, and line it with non-slip shelf liner. I used an old shell for a mini crock pot for my old girl.
Continued best wishes to the both of you!