Seriously. Speedy deserves some kind of noise tolerance award. How many dressage horses would happily school through the cracking of tree branches and the roar of a chainsaw? I don't think he ever even looked at the tree!
He was much more balanced with no tripping. We did lots of nice figure eights where he accepted the contact through the change of bend. When I asked for the right lead canter, he still popped his head up, but we were able to focus on maintaining a steady rhythm that was easy for him to hold which helped him to lighten off my left rein.
We also did lots of trot to canter to trot transitions which he got better at as we went on. I kept the work to under a half an hour as I didn't want him to get sore. I know myself how tough it is to do even a small amount of extra exercise. Now that I am once again asking him to use his butt correctly, I want him to do it happily.
I don't know how he felt about the work, but I was pretty dang happy!