There are 2 types of euphonium mouthpieces with alliance, the standard and prestige. Which one DID Steven Mead play on(which one says MEAD on the piece as well)? The Prestige 2 or Standard 2a? and I'm going to buy one and I want to know the difference between the prestige 3 and standard 3a. Are the cups slightly different? What sound does each piece help accomplish? I searched images of the the two and each time, the same pictures appeared and it makes me wonder if the two look and play differently at all.