These are great playing alto mouthpieces. They are made from custom factory molds and Tenney perfected. All mouthpieces are "hand-select" and the mpcs are then fully "blue-printed" dimensionally to specification. Tables are flattened, facing curves and tip openings are corrected to spec to tolerances less than 0.0005" and each mpc extensively test-played.
These pieces are incredible!! They are very easy to play and produce a dark, clear and expressive sound. Paul "Doc" Tenney generally only offers them in a 6 facing.