This back-bore provides a balance between enhanced resonance and increased ease in the upper register. Symphonic, jazz and commercial players have all found this back bore an excellent choice for crossing over the narrow specialization gap of contemporary demands.
Information on altering standard mouthpieces to varying resistance's through the use of different back-bores, tunnels, throats, mouthpiece lengths and cup depths is available by telephone consultation or writing. The purpose of these modifications is not to confuse the player with too many choices, but rather to determine his or her precise embouchure resistance tolerance in order to reach full Artistic potential.