The RT2 Lead Trumpet Backbore is the flagship model of my line. After working with hundreds of lead trumpet players over the years I can say that I have a good idea of what they are looking for in a backbore. That would be a backbore which produces a bright projecting burn in the sound and energizes quickly into the blow. The RT2 is an exceptionally good match with shallow and extra shallow cups, and its high output assists lead players in broadcasting their intentions to the rest of the band.