The L-MFII has a semi-round rim that is very soft. There is no undercut on this rim, so the inside diameter feels true to size (.636″). There is enough width of rim to offset lip swelling, and a high alpha angle for a gentle slope into the cup. The cup is medium shallow, and the entrance to the throat is rounded to allow plenty of air flow for a nice big sound. Slotting is excellent with the L-MFII. This model was inspired by a mouthpiece familiar to many, but the L-MFII is not an exact copy. It has the Legends enhanced throat (#27), enhanced throat cylinder length, and Legends S backbore. The design elements of this model work together to enhance endurance, range and sound for the player. The L-MFII is perfect for playing screaming lead!