Traditional heavy rings add weight for better feel. This mouthpiece breaks over the bars at a different angle to contact new nerves for better control. Lifesaver adds moderate tongue pressure for a better headset. Mullen relief is used on all our snaffle mouthpieces which is a forward curve that creates even pressure across the bars and tongue to eliminate the nutcracker effect. Sweet iron naturally rusts into a light patina. The rust creates a sweet taste for the horse and makes the bit more acceptable and increases salivation for a supple mouth.