I think she looks really good in the second video. The twisty leg doesn't show up if the dog is going at non walking pace. Don't know if you call that trotting or pacing. In the first video at countdown 16-17 seconds you can see the whole right leg twisty. I noticed Hector gets that twisty leg when I think his leg is getting tired due to his back. I always thought his legs/knees were going to go bad because of that, but I really think because he's getting tired/sore. So if the bad knee is healed, then it would start to balance the body weight better wouldn't it, thus keeping the other knee from going bad?