It's done. Lucky number 13 on Friday the 13th. The vet had to work extremely hard to get even a hint of a lameness. She said her job was to do everything she could to find something so we knew what we were getting. 10 ft circles to right, on uneven pavement, going slightly downhill, we noticed a smidge of lameness in her right front. During flexion tests there was absolutely nothing. We did determine that she had her previous owner very well trained though! She tried to pull some stuff on us that the old owner said "she doesn't like...she needs..." We didn't let her pull it on us and she quit.
Her name is RCR Shu Shu Twist! She made a lot of fans at the barn already.