Donn wrote: And everyone agrees it's quite deep, though how deep, we can't say.
My Holton 52 is ~1 3/4" (~45mm) deep.
Edit: I never use this MP and didn't really know where it was when I went to measure it. Since I had it at hand I just stuck it in a tuba and turned on the tuner. It would take some getting used to, to play up to pitch with it.
TUbajohn20J wrote:I'm still looking for one..can't find one ANYWHERE. I've got a Conn 2 but I want the bigger one.
Still want one? Not that anyone appears to be selling theirs, I'm just starting to question whether my hypothetical line of Conn revival mouthpieces is going to need to include this one. It doesn't seem to have much in common with the others (not recognizably the bigger brother of Conn 2), apparently would take a different blank, and I sure wouldn't want one myself. These mouthpieces have to be big money makers.