How do you develop the stop on a newly started wild horse?

Developing the stop on a newly started wild horse builds on the halt and backing responses established in ground work, where the horse already understands that certain pressure signals mean stop forward movement and yield — the translation to mounted stop work is connecting those already-understood responses to the rider's seat and rein signals from above. The earliest mounted stop work uses a combination of seat, voice, and light rein — the rider sitting deep and still, saying the verbal whoa cue that was established on the ground, and softly picking up the reins if needed — rather than strong rein pressure alone, because the combination of familiar voice cue with the new seat and rein signals allows the horse to connect the already-understood stop concept to the new mounted context. The release when the horse stops must be immediate and complete — all rein pressure releasing, the seat relaxing, the voice falling quiet — so the horse can clearly identify that stopping was what produced the release. Early stop work should be done from the walk rather than the trot or lope, because the walk provides a clear, easily managed context for confirming the stop response before speed adds the additional complication of momentum management. A common mistake with newly started wild horses is over-using the stop in the early sessions — asking for frequent stops to feel in control produces a horse that becomes heavy and resistant to forward movement rather than developing a genuine, light stop response from a horse that is forward and willing. Balancing stop requests with consistent forward encouragement produces a horse that is both genuinely forward and genuinely responsive to the stop, while over-stopping produces a dull, reluctant horse that stops because it expects the stop rather than because it is responding to a specific cue.