When Mud and I started, she would try to back onto the object, then sit. So I had to get faster with the clicker and lure her forward just slightly to keep her up. The last time we worked on it(I've been out of town for a while) she had progressed to backing and lifting her feet onto a 6-inch box, without sitting. That was a few days after the initial lesson. I plan on working on it again today and giving her a refresher, since she had to stay behind while I was gone. The 6-inch box was a huge improvement for her. She also tries to back around things, rather than onto them, so I had to sit in the floor with her standing between my legs. I had my feet on either side of the object, and if she tried going around the object she bumped into them. This left her with only one option: to back onto the object. She's been doing well, and once I get offline we'll get to work again. Wish Mud was as aware of her rear legs as Cas. ^^ She'd learn the trick a lot quicker.