Could any of the PT 15 owners out there please tell me the correct mouthpiece shank size for that tuba. I put my PT 65S in today and the shank seems a little small
Cheers
Bjorn
B Pfeiffer
B & S PT 6
B & S PT 15
Besson Sov Eb (work Supplied)
Gone but not forgotten
Yamaha 621C
People have widely differing opinions of what fitting "as it should" means. Even if it fits well (whatever that means) a different shank size (on the exact same mouthpiece) may significantly change the way the horn plays, in intonation, resistance, and slotting.
It's been a while since I measured some, but most of the PT tubas I have seen I would consider to be between American and European shank sizes. You should try both to see what plays best.