Janis,
My knee is the fixed bearing, not the rotating platform. My main issues with the clunky feel is because my OS wasn't able to balance my ligaments perfectly. My MCL is a bit loose in comparison to my LCL. It isn't bad and I think things will adjust and adapt over time. I don't usually feel anything when walking, running, or bicycling but when I'm a bit swollen, sore, and tired it gets to be more noticeable.
Luckily I didn't have to work on extension much during my recovery. It was at 0 or better right away. The only time I lost extension was when I overdid things and swelled up.
Dog classes can be a bit stressful. It would be nice if the instructor could keep the more aggressive dogs further away from some of the softer dogs like Charlie so he doesn't get so stressed.
Speaking of dogs and stress. Buddy really had a tough day. After the very stressful day at the agility trial I took him for a walk this evening and he got rushed by two dogs. One dog went for his face and the other went for his back legs. I was able to keep the dog away from his back legs. Luckily the owners came running out of their house and grabbed their dogs. Buddy only had a couple teeth marks on his nose. I know Buddy bit the dog that went for his face but I don't think the dog was hurt too badly. I told the owner to check their dog over well. They apologized and we went on our way. It seemed like Buddy couldn't catch a break today. I'll try to make it up to him this week with lots of play time and treats.