I got bridleless flying changes today!
My horse couldn't even do them in the pasture unless she was at a flat out race horse gallop. She has a locking stifle making it hard for her to really engage her hindquarters. I had to teach them to her on the ground, but still moving into the saddle and getting them was really difficult. We have had them over a 1' jump, but I tested them today over a 6" caveletti while bridleless and she got them!