I've been going through the box of mouthpiece that i kept and just realize like 20 percent of the mpc i decided to keep are unknown hr mouthpiece. One of the reason why i kept so many is because i cant sell it for much and i normally sell it as a lot. After trying each one (10+) I remember why i kept them. I have some fancy mouthpiece that cost a few hundred but actually one of my fav piece is one that has no marking at all on it. How many have you guys came upon that are great players although it is not worth the money to ship it out.