The work shown on the SRS is called work on the “short reins” where the handler is walking right at the horse’s tail.
It is the zenith of a horse/human relationship that is established over time. It is the place where horse and human fully understand each other…kinda like an old married couple…in a good way.
This work requires that the human be very aware of themselves…their mental state…where their perceptive skills provide insights into what the horse is trying to do in answer to the handler’s request.
I’m watching the train wreck on the thread about buying vs training your horse. People are speaking past each other without awareness that both have valid POV’s. Neither is willing to let the other “be”.
Same with the horse/human. You have to let the horse “be”…and to think of it in a positive light, that it is trying to do what is being asked…and the handler has to know how to “correct”…but not fight…with his horse.
The horse knows how to be a horse, so most important, it puts responsibility on the human to be aware of what they bring to the equation when asking the horse to do a movement.
I would say that being able to do precise work on the short lines requires a rider/handler who is willing to develop personal insights and self awareness…and that the responsibility is not always on the horse.