Not to worry. Sounds like Yuki is just settling in. She just arrived to her new home so she is primping. Right now my grey is molting as are a lot of our greys so I really don't think you have anything to worry about. As for standing on one foot my grey, Ana Grey, does that when she is comfortable. Some sleep that way with one foot up. So relax and enjoy your new grey. Can't wait to see some pictures. Karma to you for taking in an older grey.