At the time, a finished reining horse (as it was called) required at least seven years to train: three to four years to train the basics in a bosal hackamore, then at least a year carrying both the bosal and the high-ported spade bit (named for the spade-shaped port which was from 1-3" high) to help the horse learn how to carry the bit, then several years refining techniques in the spade until the horse was a "made" reining horse. The training could not be done by just any Californio, and reining horses were valuable because of the difficulty of training and scarcity.