I think they've made clowns out of Walkers. Walkers were meant to be ridden all they thru fields and keep rider comfortable.
My barn is all Walkers, and show. Most barefoot. The majority of TWH are not flashy freaks, I'm at a show barn yet none of the horses here are padded. There's actually only a small group (as compared to the normal TWH) that are padded up .
My horse has a head nod, I never trained for it. It took her some maturing to have that happen. You need a relaxed horse and work the walk , and walk your way up into a faster walk , and lengthen the stride. Some are born having more talent than others. Some need alot of practice. Mine does this willingly on her own. It's taken a few years, tho.
Those padded up stallions you see in ads for breeding-well, they are bred to be on the pacey side so the big lick is 4 beat. If they've had all that work to be a big lick horse, how do you know that the horse is truly a quality walker? You don't.
People can have alot of problems with keeping their horse from pacing. Someone told me once "if you don't want them to pace, don't let them!"