Part 6: Greg works with a rider whose horse is a little reactive and tends to get away from her around the course. He uses a simple lead change exercise and the canter flatwork from earlier in the lesson to help her keep the horse soft and controlled, and reminds the rider not to over adjust and shorten the horse's fuse. They have a much better round with this in mind.  He suggests another rider change down to a softer bit for her horse who needs to come softer into the hand and reminds the riders of the importance of the voice as a means to communicate with their horse.