Pretty much exactly this.
You basically have to get the horse very supple, over a period of years, not weeks or months. But it does work. The horse probably won’t ever be a “big” mover, but can likely be improved substantially.
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Well, do his feet hurt? I mean are they uncomfortable at all, ever?
I don’t shoe my horses, but very strongly believe in hoof protection when working regardless of what type, if there’s even a question to ensure the horse is comfortable. I ride my TB in EasyBoot Gloves, and if we go to a show we do glue-ons.
As for the rest - yes, there’s hope. Teach the horse to relax and swing its back, and he will get there. It takes time, patience, and a belief in the gymnasticization of a horse with dressage. Many people are too impatient to do it, but it will definitely help your horse and improve his gaits.
My OTTB took about two years to figure out any kind of lengthening, and he can only do it if he’s very strong as it’s not natural for him - but when he is strong, he has huge lengthenings. I’d say work on it only as long as your horse can keep his balance, and don’t push for more than that. Learning to shorten the stride and doing many transitions will help him learn to lengthen the stride and build correct muscling to support it.[/QUOTE]