I ended up buying the furminator for the cat. He actually likes it. I asked the vets about using it on Sage and they both agreed his skin would tolerate it well a couple times a week. We've been very successful with it, but his coat is still so thick. It's crazy. He's starting to have some labored breathing and still has that bad knee, but no health problems otherwise. I was even told those high enzymes were really not that high and no cause for concern. Our biggest issues are still keeping him cool in the heat and keeping the fur layer under control. So much fur. And of course, keeping him out of everyone else's food.