I recently purchased three mouthpieces. They are a Classical (6C), Indiana (9IN), and a Florida (8* FL). All are excellent.
I needed a large chamber mouthpiece for my 1923 Buescher TT bari. This horn has a problem with low F and E warbling with modern mouthpieces. These mouthpieces eliminate most of that problem.
The Florida and Indiana model are very similar with the Indiana having a bit more edge. I like and play all of them. Morgan mouthpieces are great and make my old bari play like a different horn.
Morgan's customer service is the best in the business!
Steve C.