Posted by Roger Lewis on March 01, 1999 at 10:03:10:
In Reply to: Mouthpiece Damage posted by S.P. on February 28, 1999 at 19:13:30:
As John noted you will build up what is called a venturi effect at the point where the mouthpiece meets the end of the receiver. This will create a low pressure area immediately after the end of the mouthpiece and a high pressure are just after that, creating more resistance. Mr. Klinehammer (sp) formerly of the Chicago Symphony recommends that the end of a mouthpiece be tapered to almost a sharp edge at the very end to minimize the venturi effect. I find this to be true and worth the effort. The key here is to hone only the very end of the mouthpiece. You don't want to mess with the taper farther back in the mouthpiece.
Get it fixed and happy playing.