This, like the 01 model incorporates tuning in the bell slide allowing for compensation on every note. The rear-ward facing tuning slide allows the use of any combination of conventional trumpet bells. This in itself makes it suitable for Big Band lead trumpet and it is perfectly balanced around the finger hook point making it very comfortable to hold. Because of having the conventional lightweight bell and no dampening forward bell-stay it is a much brighter instrument than the 01 models. As with the 01 models, the solid machined lead pipe gives very accurate intonation and accurate slotting. For really good players out there I am looking for someone to endorse these trumpets. Please come and try them!