Bach 5B Flugel vs Curry 8.5 FL
The Bach 5B Flugel has a wider cup diameter, the Bach 5B Flugel features a deeper cup, the Curry 8.5 FL has a larger throat opening.
Cup Diameter
The Bach 5B Flugel has a cup diameter of 16.25 mm / 0.6398 in compared to 16.23 mm / 0.6390 in on the Curry 8.5 FL — a difference of 0.02 mm / 0.0008 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Bach 5B Flugel has a deep cup while the Curry 8.5 FL has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Throat Diameter
The Curry 8.5 FL has a wider throat (4.01 mm / 0.1580 in vs 3.99 mm / 0.1571 in). A wider throat allows more air through, increasing volume and projection but reducing resistance.
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.