My Equipment:
Yamaha ysl-691 .508 bore with a custom lead-pipe
Yamaha ysl=682b .547 bore with 45*throw valve
Yamaha ysl-350c
Mouthpieces:
My signature line of three mouthpieces.
These are designed for small-shank tenor trombones.
Click
on each link
below to see the .gif of each.
The .gif is from the CAD drawings which
illustrate all contours, interior & exterior.
All of them have an identical rim which is
1.01" or 25.65mm in diameter with a contour which is
similar to a Schilke/Yamaha "C4" or a Wick MP.