Kristy McCormack (Herrera) explains and has a rider demonstrate how to help a horse that drifts. They start on the flat using counter flexion to help keep the horse straight. Then they progress to cantering a cavalletti also using a counter bend and outside leg to help keep the horse from drifting to the outside. Then she gives some helpful tips on how to use guide poles with a jump to give a visual cue to both horse and rider.