Posted by Tim Jackson on April 04, 2003 at 13:14:28:
In Reply to: Double Cup Mouthpieces posted by Hiram Diaz on April 04, 2003 at 02:35:46:
the first half of the cup takes off like a very shallow cup, then halfway down the cup turns to a funnel to the throat. rim is regular as I remember. Parduba made it.