I really like him, assuming the roaring is ok’d by a vet you trust (and assuming no other physical issues) I see a lot of potential there. In that first video he’s overbent, with his head forced down with a lot of pressure on his jaw. That puts enormous strain on the muscles and ligaments of his neck, totally inhibits any ability to lift his shoulders, and hollows and stiffens all the rest of his back. In addition he’s getting repeatedly hit in the mouth and back by the rider.
Even with all of that going against him he’s STILL trying to lift and carry himself uphill even though he should by all rights be way on the forehand in that position, and his tail is awfully quiet to boot. If he can look that light on his feet with all of these things fighting against him, can you imagine what he’d look like after a year or two of getting to relax/classical training?!
Plus IMO the fact that he’s as calm as he is in that situation says a lot about his temperment. If someone tried that set up on my (far-too-fancy-for-the-likes-of-me) mare, I doubt they’d make it two steps before getting launched violently through the air. Then she’d trample them for good measure. And if they managed to get up she’d probably blind them with angry tail swishing.
Hmm, on second thought actually I don’t think you’ll like him at all. Send him to me! 