The Legends JF was inspired by a famous mouthpiece played by a legendary trumpet performer, conductor, composer, and educator who has entertained audiences and influenced countless emerging trumpet players for over 40 years. The JF rim is very comfortable, and paired with a medium shallow cup. Legends Brass has added a #27 throat and the Legends T (focused) backbore. The Legends JF is kept in stock in our heavyweight blank. Combining a shallow cup and tight backbore with the extra mass of the heavyweight blank enhances upper register playing, while maintaining plenty of core of sound and ease of slotting.