I have bought a 28G mouthpiece for playing my brass ensemble, and it let me feel amazing, with a really quick response let me can play more beautiful things with the mouthpiece. During that time I bought that mouthpiece, I’ve tried 30B too. 30B provide a deep sound with my YBB-841 tuba, then I knew I can completely play it with wonderful sound in my orchestra, but that time i decide only buy one so I bought 28G for my brass ensemble. Till this December, I finally decide to buy the 30B, and start...