I have played tuba for 5 years now and the best mpc. for me is a gold plated Marcinkiewicz 4H. This thing is deeper than a canyon. But mam i love it. It costs about 80 bucks and then another 80 for gold. Totaly worth it. I also play tumpet (i know a tuba and tumpet player it's odd) and i like to use a 3c on my xeno. The one that comes with the horn is great.