Yeah, a hackamore might be an option. We really don't know the history of this horse because he was a rescue case... poor thing. But, like I said before, he's so quiet and sensible so he's the perfect temperament for my sister. I understand where you're coming from, Soon & Spyder, but he's free lease and we have the option of returning him if it doesn't work out. We're going to try him and if he's no good, then we'll return him. He doesn't fight the contact... just puts his tongue around it - I had no problems stopping or slowing him down.
When I bestride him, I soar, I am a hawk: he trots the air; the earth sings when he touches it; the basest horn of his hoof is more musical than the pipe of Hermes. ~William Shakespeare