Note on backbores.
The rate of flair in the backbore section of the mouthpiece influences the resistance and steadiness of the tone. If the backbore is narrower (Backbore "B"), the tone will be more compact, but on the other hand Forte levels will be more resistant. A medium backbore (Backbore "A") is a good all-around balance for the majority of players. An extra-large, concave-shaped backbore ("C") will make the tone darker and softer, and on the other hand will not have the compact sound of the "A" and "B" backbores. Most players prefer the "A" backbore, though some choose the "B" for chamber music and others like the free feel of the "C". Moosewoods will be sent with the 'default' "A" backbore, unless you ask for the "B" or "C" type.