This last trainer is a wonderful accomplished horse woman. She got right on him and while he was hot, we went on a few trail rides, but he started after a few rides bolting, then not going forward and bucking...and now we are here.....
I feel this part is most important, since it's recent.
I ride a mare (not my horse) that will go full out, or suck back (no going forward) and bucks. Recently she was having saddle fit issues, and I'm having issues riding her forward properly. She's being intolerant of my mistakes or bad timing.
My own personal horse, used to be a bolter, a spooker, an avoider. He never bucked but he ran from all of his "problems"
Now how I deal with the first mare is push her MORE forward when she sucks back and tries to buck. As soon as she quits, she gets a release but we KEEP going forward.
If she goes fast, I channel that energy into large circles or loops, instead of fighting her.
For my own horse, I just kept up with him. If he got silly with spooking, I rode him into small 10m circles spiraling down until he got himself under control.
A lot of trainers just want to proceed in an A B C kind of fashion. Some problem horses, well... MOST, cannot cope with that. They need slightly different approaches.
I feel this last trainer may be one to hang onto and work more with. It'll be an ugly process before you get a nice horse.