Okay, so I had the pleasure of talking to Mission's original trainer. She also had him for several years, showed him successfully, and was very much attached to him. She had a lot of excellent advice for me about his personality. As it turns out, the big guy is not just sensitive, but supercharged Corvette sensitive. He's NOT spooky. He feeds off human emotions, more than most horses. She is a professional trainer and has worked with a lot of horses. She said that he is the most sensitive horse she's seen when it comes to reflecting the emotions of a handler or rider. If I'm nervous, he will be nervous. If I'm relaxed, he will be relaxed.
This is actually a plus for me personally. I have the ability to be the calmest person in the room during an emergency. I don't know how it happens. I just know that I can do it. Mission needs a confident leader. I'm going to do everything I can to be that for him.
I will keep you all updated. And thank you for reading and for your support!