Its the same thing with Saddlebreds. They want that REALLY high stepping movement, and very high head carriage, so they also pad the horses feet, though not near as much as Walkers, and also do chains, ect., though I've never heard of them soring a saddlebred, but I'm sure that its probably been done. And then all the equipment, and harsh bits they use to keep the horse's head jacked up. I know someone who worked at a Saddlebred and Hackney farm, and when they started training the horses, one of the first things they do, is use a bitting rig. They put a bridle on the horse, and a special surcingle, and essentially the equivalent of an overcheck rein, and tie the horse's head so that the ONLY way they can eat is if they break at the poll, and hold their head "just right", and then they leave them like that for a couple of days in the stall, and feed the horse in the feeder. They already breed for huge front leg movement, and then they try to make it even more dramatic. The horses that don't want to step high at all are still forced to move like that, instead of being "culled" out of the herd, and sold or used for something else. All these enchancements, whether they be drugs, tack, shoes, ect., to over exaggerate movement, or attitude, or muscling ect, kind of defeat the entire purpose of selective breeding. It should be enough to breed for that time of movement, and use what the horse was ALREADY born with, and just breed the more animated horses together, than to accentuate it in any way possible.