What are the key points to using spurs correctly for western horses?

Spurs are one of the most misused pieces of equipment in western riding, and the misuse almost always runs in the same direction — too much, too soon, too often, and without the stable leg position required to make them a precise communication tool rather than a source of random, confusing pressure. A spur used correctly is an extension of the leg aid that allows for more refined, specific communication with the horse's side. A spur used incorrectly is a source of constant irritation that teaches the horse to be dull, anxious, or defensive — the exact opposite of the soft, responsive horse every western rider is trying to develop. The foundational requirement before any rider puts on spurs is an independent seat with a stable, quiet leg. If your leg swings with the motion of the horse, grips and releases involuntarily, or moves around in search of balance, a spur on your heel is going to make contact with the horse's side at random moments that have nothing to do with any intentional cue. The horse cannot learn from random pressure because random pressure has no consistent meaning. Riders whose legs are not yet stable should not be wearing spurs, regardless of how long they have been riding or how experienced they consider themselves. When spurs are appropriate, the application should always follow the same hierarchy as any other leg aid — leg first, spur as reinforcement only if the leg is not answered. Apply your calf, wait for a response, and only if the response is insufficient or absent reach for the spur as a follow-up. A rider who goes straight to the spur without first applying the leg is short-circuiting the training process and creating a horse that is only responsive to the spur rather than to the leg itself. That horse becomes progressively duller to the leg over time because the leg never means anything on its own. The mechanics of correct spur application matter significantly. Turn your toe out slightly to bring the spur into contact with the horse's side, apply with a deliberate, intentional motion, and remove it the moment the horse responds. The spur should never drag or roll along the horse's side during normal riding — contact with the horse's side during every stride without a specific communicative purpose is background noise that the horse learns to tune out completely. Spur placement communicates different things depending on where contact is made — at or near the girth it influences the shoulder and forward energy, behind the girth it addresses the hindquarters and lateral movement. Learning to place the spur precisely where the communication needs to happen is the difference between a spur that refines and one that merely pressures.