Now, I'm afraid that I am not riding him correctly, and that I might hit him in the mouth or hurt his back...and then make him afraid to jump. I tried riding a two point all the way to the jump, so I would stay off his back and let him figure out his own spot, but when I did that he takes really long spots. If I ride him how I normally ride, and wait for the jump to get in my two point, he takes off when I stand up..and doesn't take such a long spot. I don't hit him in the mouth when I ride normally, but I'm afraid that he may jump weird or take a long spot, then I'll hit him the mouth and bounce on his back, therefor making him sour to jumping.
Am I just being too cautious? Or is there anything I should or should not be doing when training a green horse to jump?