I hadn't been riding him because really what was the point? If I couldn't do it on the ground than I likely wasn't going to be able to get him forward while up on him. I just kept plugging away until he had it down and I was impressed with how quick he was learning.
A very good rider who retrains a LOT of Tb's and greenies wanted to come see horses over the weekend and was interested in seeing Herbie. I explained what I had been working with and she was very familiar with the process. She really liked Herbie's conformation, his feet and his movement. He tried all of his tricks from wanting to bulk at the gate, kicking out and bucking in protest of going forward from the leg but she just kept sending him forward. He got better as she went and there were moments of brilliance. He doesn't have much bend to the left especially in the trot so that side of the ring was a bit of a challenge because he wants to bulge in.