George Williams with Beth Baumert

Credit: Amy Dragoo In counter canter, the horse not only must be in front of the inside leg (left in this left-lead canter), but he must also respond correctly to the outside (right) leg. That is, he should go straight forward from the outside leg instead of swinging his haunches to the inside (away from the outside leg).
Instruction

Exercises to Develop Your Horse’s Straightness and Collection with George Williams

George Williams explains the importance of the counter canter