Thanks Anita-- those are my thoughts exactly. An instructor should recognize when work is productive or incorrect and non-productive. I actually spoke to Jax's last owner whose daughter schooled dressage on another horse for a while. She's famililar with the trainer I used and described her as a "nice person but not an experienced trainer" and recommended a new trainer for me. We'll see how it goes!
Buh, I felt just awful after that lesson and was so anxious to ride today and right a few of those wrongs. It was a relief to find that Jax was just fine and had the "it's a new day!" attitude I was hoping he would.