The B cup is a great piece for demanding playing that requires extended endurance to play not just excerpts, but long performances. This mouthpiece trends towards the upper register ensuring the last note on the performance is as good as the first. -the manufacturer
The primary objective in creating the Griego Artist line was to provide a great mouthpiece as well as a great mouthpiece series. Each series currently has six cup depths (A, B, C, D, E and F, with F being the deepest) with identical cup diameters and rimshapes. The differences between the mouthpieces in each series are in the cup depths and throat dimensions.
What this means for you...
Once you have chosen the mouthpiece that best suits your playing, you should be able to move freely among the other mouthpieces in that series to find the optimal cup depths and throat dimensions to satisfy your musical requirements. Griego has taken great care to keep the specifications of the Artist series mouthpieces exact, and to that end, no alterations were made to the rim or cup dimensions of any mouthpieces produced for previous artist lines.