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I'm hoping to invest in a new mouthpiece for my B&S PT-4, but I'm hoping to get some recommendations. I've had the tuba for a couple of years now, and I've been using a PT-50+ mouthpiece primarily, as I wanted a little more support in the lower register as it isn't the biggest horn. Now that I'm doing more high register stuff I want something that will minimize intonation issues in the upper register and will be easier on my face.

Any suggestions?

I find that the PT-50, for my CC tubas, has a surprisingly good and reliable high range up to D#, E. However, in the past when faced with some Berlioz overtures and the Brahms German Requiem, I used smaller mouthpieces just for "safety".

Ace