I received the mouthpiece on Friday late afternoon ! So, I had all the week-end to try it and enjoy the music. Great ! Beyond what I expected… If I could make a metaphor, I would say that when I play the Missing Link, it’s as if I had always been living in a house completely closed, and suddenly all the windows were wide open… Each musical note is like a vivid universe, large and full of harmonics ! The high notes are crystal clear, never shrill…I don’t fight anymore with my instrument… now, I sing… (I exaggerate a little, I remain a beginner but I regain my enthusiasm !!!) So thank you so much ! Good work !