Posted by bruce h on January 13, 2003 at 21:47:23:
In Reply to: MP for 189 posted by SHS Tubamaster on January 13, 2003 at 21:02:42:
The TU33 is a deep, bowl shaped cup mouthpiece. It is a fine mp if you like 'em big. I used one with my 186 and was happy with it. I also used a helleburg on my 186 but I liked the feel of the TU33 better. The helleburg has a sharper inside rim that people either like or dislike depending on their preferences.