One thing that really helps his back to let go is the leg yield, especially when I insist on a BIG move over. We did a few of them in each direction. All of a sudden, he gave a leg yield that was huge, balanced, and absolutely effortless. There is no doubt in my mind that it would have scored a 10! I have never ridden a leg yield that felt like that.
This boy is so talented. If I keep working on him, I'm going to have a second star in my barn. Look out, Speedy G. Izzy's on his way!