At the beginning of last week's lesson (the one in which we jumped) my trainer told me to stop and walked over to me while we were on the left rein.
"It's like, you're sitting straight, but your torso is off to the left." She pushed me in the left side of my ribcage.
"Holy ****," I said. I was looking down at Connor's neck when she pushed me, and suddenly I could see both sides of his neck evenly. But the thing was, if you asked me before she did that if I was evenly over his center, I would have said yes. This sounds stupid, but I would never have realized that my default position was that off to one side if she hadn't pushed me like that and I hadn't been looking down when she did it.
"That's probably part of the reason you have so much trouble with his left bend."
The rest of the ride, anytime I felt him get crooked, I exaggerated placing my torso to the right and making sure to keep my right side long, and he almost immediately softened and got straight.