Giardinelli Sym. T vs Marcinkiewicz 9BB. Stroup
The Marcinkiewicz 9BB. Stroup has a wider cup diameter, the Giardinelli Sym. T features a deeper cup, the Giardinelli Sym. T has a larger throat opening.
Cup Diameter
The Marcinkiewicz 9BB. Stroup has a cup diameter of 26.06 mm / 1.0260 in compared to 25.80 mm / 1.0157 in on the Giardinelli Sym. T — a difference of 0.26 mm / 0.0102 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Giardinelli Sym. T has a deep cup while the Marcinkiewicz 9BB. Stroup has a very shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Throat Diameter
The Giardinelli Sym. T has a wider throat (6.40 mm / 0.2520 in vs 6.35 mm / 0.2500 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.