Today he started off like that, and VERY sluggish off my leg, as he always does after a break. But once I worked him through the "no, I won't" he gave me some beautiful work, lovely transitions and nice consistent working trot - and then I let him have a little more rein and pushed him to lengthen his trot.
He was working into my hands and felt beautifully uphill and through from behind, long and low and so powerful. The only thing I can think of that's changed is TWO dressage lessons with a high-level rider/judge. If two lessons can make that much of a difference, and not even on my horse, I can't begin to imagine what we'll be like with regular dressage lessons. Right now I'm regretting not bundling said coach up and sticking her in my suitcase to bring home!