Wayne: "This GR Mouthpiece shares the same rim as the WB Studio Model. The cup is deeper to enhance the lower overtones and to create a clear, full-bodied sound. Players will not lose any range due to of lack of compression, which sometimes happens with a change to a larger mouthpiece. This is my mouthpiece of choice for smaller ensemble playing, lower section parts, and for the occasional times that I use C trumpet."

GR:  "A slightly lower alpha angle allows for increased cup volume and depth to enhance the lower overtones and to create a clear, full-bodied sound. To attain the design goals of a deeper and larger volume cup, GR made numerous design adjustment to the alpha angle, L1, beta angle and throat entrance to balance the larger volume cup, as well as, using the GR #3 backbore."

Specs:
Backbore: 3
Cup Volume: 0.0756 Cubic Inches (Medium)
Cup Diameter: .631 Inch
Contour: Semi Flat-Wide
Bite: Soft
Alpha Angle: Medium High