Part 1: Robin introduces the young rider and her talented warmblood mare who are successfully competing at one star level. He explains that the mare is dragging the rider into fences and the rider is breaking rhythm and struggling while trying to correct this. Robin shares that although in an ideal world every horse could ride in a snaffle bit and cavasson nose band, this is not reality. They try a three ring bit with a waterford mouth piece. Robin cautions that care is exercised when first changing a bit, especially with young horses, and talks through safety points and his process of trying a new bridle set up. The rider slowly works up to galloping and doing a small cross country jump in the new bit. Robin supports her as she overcomes issues created before the bit change.