How important is a horse's attitude and expression in working western rail judging?

Attitude and expression in working western rail are not soft or subjective extras — they are core criteria that directly affect how a horse scores, and experienced judges consistently place horses with genuine, willing expression over horses with technically correct but mechanical movement. The attitude judges look for is a horse that appears to enjoy its work and to be participating willingly rather than complying reluctantly. A horse with its ears forward or gently mobile, its eye soft and interested, its movement expressing genuine energy rather than forced effort, reads as a horse that is genuinely trained and genuinely willing. This horse scores over a horse that moves correctly but appears dull, behind the bit, or mechanically obedient. Expression in the movement itself means that the horse's strides have life — the hind leg reaches and pushes rather than merely following, the shoulder swings freely rather than being restricted, the back moves rather than being locked. This expressiveness cannot be faked through equipment or rider positioning; it comes from a horse that is genuinely free through its body, genuinely responsive to the aids, and genuinely forward in its mindset. Clinton Anderson's teaching on developing forward willingness is directly relevant here: a horse that has been trained to be responsive to light aids and to work for the release rather than against pressure shows the expression that judges reward. Horses trained through restrictive equipment or through constant pressure tend to show the tight, mechanical movement that does not express the working horse ideal. Warwick Schiller's attachment and relationship work also contributes to expression: a horse that is genuinely comfortable in its work environment, that trusts its rider and its surroundings, and that is not managing anxiety while performing will show a qualitatively different, more expressive attitude than a horse that is technically going through the motions while managing stress.