Denis Wick SFL vs Marcinkiewicz CH 303FL
The Marcinkiewicz CH 303FL has a wider cup diameter, the Denis Wick SFL has a larger throat opening.
The width of the rim surface that contacts the lips. Wider rims improve endurance; narrower rims improve flexibility.
Mouthpiece A
Denis Wick SFL
• Flugelhorn
Rim width5.30 mm / 0.2087 in
Best suited for
All-round versatile — balanced cup for general playing
High-volume projection — open throat for power
vs
Mouthpiece B
Marcinkiewicz CH 303FL
• Flugelhorn
Rim width—
Best suited for
High-volume projection — open throat for power
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.