The peaking system is when we give help in training (positive or negative reinforcement) and then as we diminish that help, we figure out how long the dog will do the behaviors we desire with no help. Sometimes this is one training. Sometimes this is two trainings. Fewer times, this is three trainings. When the dog is no longer doing the desired quality of behavior without help, we help again (to peak) and get performance up to where we want. Once the handler knows.