This is the signature model of Wayne Bergeron, the legendary lead trumpet player of the Big Phat Band. Designed and manufactured using modern technology such as acoustics, the GR mouthpiece features Bergeron's signature laser-engraved on it. It has a good response and a sense of speed when playing. It has a strong focus and a clear sound edge. Recommended for players who need high notes, it has a very efficient design that prevents the vibration of the lips in the cup from escaping. Production was announced to end in June 2022, and it is now difficult to obtain. "GR" mouthpieces are a cutting-edge mouthpiece specialist manufacturer based in the United States. They are popular across genres for their balanced tone, playing feel, and intonation, and are known as mouthpieces that are "efficient and easy to play." Wayne Bergeron Trumpet Mouthpieces WB Studio: This mouthpiece was designed to accommodate the majority of my daily work demands. This "lead" mouthpiece is powerful, and very resonant in all registers. The core of sound is unmatched by anything I‘ve ever played my entire career. The rim has a soft comfortable bite for improved endurance. I was playing a Shew 1.5 and 2 before I made the switch to the GR Custom. The (GR) rim will feel larger and softer. I lost nothing with the larger rim feel. I gained a better sound, endurance, and range! Many of my colleagues in Los Angeles have noticed my enhanced sound!!