Tuba mouthpiece for jazz work

[elimia]

Wow, it's been too long since I visited TubeNet. I discovered synthesizers, which derailed a bit of my horn playing!

I'm going to be doing some jazz work on tuba and would like to get some tuba mouthpiece input. I'm primarily a euph player, so tuba isn't my first home. My tuba is a 1960s era (I think) Conn 10J. I have a Blessing 18 mpc I thought would work. In ya'lls expert opinions, is there a fairly nimble mpc you've had good experiences with? I play pretty standard euphonium mpcs (Bach 5G). Normal adult male jaw size (Height 5'10"). Thanks!