Thank you! :) That does sound like him. I was actually afraid of him the first time I saw him for the reasons you said--I told my son's teacher that he looked like an unsprung spring ready to bounce.
Once I got to know him, though, I realized how great he was. Just because he CAN gallop powerfully doesn't mean he DOES. I was around this horse for probably a month before we decided to buy him.
When I first started working with this horse, I was a bit worried for my client's safety. He can be a jerk on the ground, and acts like a complete nut when you turn him loose in the round pen. He doesn't stand great either. (Have been working on all these things and he is improving).
But when you get him under saddle, he is almost an angel. Calm, quiet, but moves with intelligence, sensitivity, power, and a general good tempered willingness. Obviously he has some issues here and there (that's why they hired me), but he has not spooked a single time yet, while the other calmer OTTB is a nervous spooky nelly away from home.
I changed my mind about him when I got aboard. I have said that he would make an amazing eventer, jumping, or dressage horse, or even liberty. If we weren't moving to a different country I would probably try to buy him!
And I'm glad to know your trainer has your best interest in mind! I have worked with a few that were the opposite.