LOL. Out of everything I've tried, he clearly loves the sidepull best. Our riding has been less over the past few days due to the issues in this post, but when we do ride, he is actually more responsive to me, especially in the leg. He also thinks more, which I find interesting! He'll think about the gait/movement patterns I'm asking for and catch on so fast that I have to switch them up.
Again, because of vet things I haven't started lessons with him to work on helping him collect, but I will say that his canter is a lot smoother and feels more collected & relaxed. The woman we will be working with is actually a dressage trainer who does all-around lessons, so I'm hopeful!
The only downside is that he looks awful funny with a western saddle and a pretty little dark brown english-y sidepull!