I stuck to my plan for this morning. Izzy ran for almost 10 minutes, then I tacked her up quickly. I left off her splint boots and just brushed her off quickly instead of doing a thorough job and making her spotless.
We did so much better. She didn't rear on the lunge. I just put her out there, sent her forward, and as soon as we had walked, trotted, and cantered both ways, we were done. When I got on, we did transitions. Lots of them. I tried to ask for a transition every 5 or 10 steps, so she had to think constantly. At the same time, because we were the only ones in the arena, I got to focus more on my position and aids then on not getting hit by people who should be able to steer. We're still just doing walk/trot stuff, but I think we're getting to a place where cantering won't be unreasonable.
I realized yesterday that the turn on the forehand that Cathy had us work on is actually the prelude to lateral work. Perfect! I need to get Izzy moving off my leg a little bit, so we worked on this too.
All in all, a successful training day.