Thanks for your suggestions. I have been doing some looking into the Parelli games and they seem interesting, but not really different than regular groundwork? I haven't gotten that in depth yet though, so I could be wrong. Anyways, you are probably right about him not really wanting to be with me at that particular moment...
not that he dislikes me, but he LOVES my mare. This is the first time that he has been kept with a mare and has become very attached to her. In the past he was kept with geldings and we had problems with him putting holes in the other horses.
I should probably elaborate on what is happening when he is rearing. Basically what the situation is that we are riding away from the house. Everything is fine, he's responsive, a little nervous, full of energy, etc but still doing what I'm asking. I came to the end of the driveway and turned a circle so we were facing the house and he attempted to bolt. I checked him lightly with the reins (trying to stay out of his mouth as much as possible) and up he went. All three times it was the same thing. It wasn't a refusal to go forward (which I think is what it came off as when I first described it) but more frustration that I wouldn't let him go forward fast enough.
Also, this is a problem all of his other owners have had with him, regarding the barn/buddy sourness, not the rearing. I also was told that the first owners were afraid of him because he has a tendency to explode when he is scared. I don't think he has always had the best experiences relying on humans for guidance. Looking at the Parelli personalities I would say he is a right brain extrovert (pulled up the website quickly
That being said I think you have good suggestions (I will work to incorporate them) and I appreciate your input. I don't think hitting him will work either, that was just my first reaction the very first time he did it (obviously didn't work right?)