Bob Reeves Piccolo 42/M/692sL vs GR Technologies G66**
The GR Technologies G66** has a wider cup diameter.
The width of the rim surface that contacts the lips. Wider rims improve endurance; narrower rims improve flexibility.
Mouthpiece A
Bob Reeves Piccolo 42/M/692sL
• Trumpet
Rim width—
Best suited for
All-round versatile — balanced cup for general playing
vs
Mouthpiece B
GR Technologies G66**
• Trumpet
Rim width—
Which is better?
Neither mouthpiece clearly dominates the other — the right choice depends on your embouchure, playing style, and the sound you're after. Try both if possible.