Tummy and rump tickles still effective. Because I had limited time, I just got on and rode this morning. Horton was a little sticky trotting left, never getting consistently soft and forward, so I didn't ask for canter. Reinbacks are definitely straighter. And Horton gave me another piece of the puzzle. Actually he gave it to me yesterday as well, but confirmed it today.
Horton is a pooper. I think he has pooped every single time I have worked with him, sometimes two or three times – while I'm grooming or tacking him up, while I'm leading him out to the arena, while I'm working him on the lunge line or under saddle. Yesterday he didn't poop once while I was around. I thought maybe it was a fluke; maybe he had pooped just before I started grooming him. But he didn't poop again today, so this is definitely something the hunter-gatherer in me noted. I think it indicates that he's not stressing as much over – what? anticipated discomfort? At any rate, I think it's positive.
Off to Lincoln City to walk Lance!