The Queen of the Hill trains pitcher to develop directional force that creates a linear and efficient path towards home plate that results in a long radius stride length. This force, aka Ground Force, transfers up the legs, through the body, and out of the arm in a chain reaction, taking stress off of the pitching arm and increasing velocity. Many players reference this chain reaction and the force created as Leg Drive. Instead of using verbal commands or visual aids, the trainer gives a feeling of creating leg drive and driving directly towards home plate with a return of an immediate audible feedback signal when done correctly. Once the player develops leg drive consistently, they will challenge their ability by turning the lever at the back of the patented spring housing to increase the amount of force is takes to hear the audible feedback signal, which will result in higher velocity and consistent health of the pitching arm. With repeated reps, the pitcher will create muscle memory that will cause her to do the same in the game.