You can find the difference here : philbarone.com/tenor.htm Feel free to contact Phil Barone yourself...

Phil Barone really cares about his product. Whether you would care for it, I can't say. You'd just have to try it. Jody Espina also cares about putting out a quality product, as does Ralph Morgan - and I'm sure many other mouthpiece craftsmen I don't know. Some of them will let you play test a piece if you use a tooth guard, and just be out a nominal charge if you return it. Check out the JodyJazz website. Bon Chance.