I am a strong believer that our instruments still have room to improve in sound and vibration and naturally produce a bigger and more vibrant sound. The tailpiece is a sensitive area of our instrument, its function is not only hold strings but to transmit the vibration and feed it back to the bridge. Using carbon fiber makes sense because its weight to density ratio is able to transmit vibrations back to the bridge much more than wood, plastic or metal. I made one for my 1700 Mateo Goffriller, instantly it woke up the old cello and gave it extra vibration, more focus, deeper bass, faster response, clearer tone and much more sound.