How do you evaluate a dressage prospect's canter?

Evaluating the canter in a dressage prospect requires assessing both the natural quality of the gait itself and the specific qualities that will be most important as the horse develops through collected and ultimately advanced canter work including flying changes, half-passes, and pirouettes. The canter should show a clear three-beat sequence with a genuine moment of suspension — the jump quality of the canter that distinguishes an elastic, uphill canter from a flat, four-beat one — and this natural jump is the quality that will eventually develop into the powerful, uphill collected canter that dressage demands. The canter's natural balance is particularly important to evaluate: a horse that canters with its weight naturally balanced and with a tendency to be uphill — front end rising rather than falling in each stride — has a structural advantage over a horse that canters downhill or in a flat, heavy balance even when forward. The degree of impulsion in the natural canter — whether the horse canters with genuine spring and elastic push from the hindquarters or with a flat, pushing quality that lacks elevation — indicates its natural tendency toward the suspension and carrying that collected canter work will require. The canter should be evaluated on both reins because significant quality differences between the left and right canter — very common due to natural crookedness — indicate an asymmetry that will need systematic attention through training. A horse that naturally shows better balance and a more genuine three-beat rhythm on one rein than the other is showing normal natural asymmetry; a horse that shows a dramatically poorer canter on one rein or that consistently shows a lateral, four-beat canter on either rein has a more significant asymmetry that will need careful development. The ease with which the horse produces clean canter transitions — the promptness and balance of its response to the canter depart aid — also indicates its natural responsiveness and balance.