So here's an update on his progress. :)
The bucking has totally vanished. He doesn't buck one bit anymore. :) On a good day he will go at a normal speed, but lately he's been bolting a lot. He completely runs through jumps, goes the fastest I have ever had a horse go with me. . But- HE HAS STARTED JUMPING AGAIN! :) He has not jumped since a long, long time ago and I am so pleased with him! We jumped 2'3, slim chance we might've jumped 2'6; he didn't bat an eyelash. One refusal so far, my fault. Working on the speed, I know it's dangerous but this is not a complaining thread. He's come so far.