This model has a semi-flat and very soft rim which has some undercut for chop room and bite. The cup is medium to medium shallow. The cup shape is like the famous “SL” cup, which is a flat-bottomed bowl. The entrance to the throat is slightly rounded, which allows plenty of air flow despite the low cup-volume. The throat is a #27, and the backbore is the Legends S. The design elements of the L-B6LVS work together to maximize endurance and range and improve slotting for the player. This piece can be used as a lead or legit mouthpiece.