Bruno Tilz 200-0 1/2 C vs Schilke 18Heavyweight
The Schilke 18Heavyweight has a wider cup diameter, the Bruno Tilz 200-0 1/2 C has a larger throat opening.
Cup Diameter
The Schilke 18Heavyweight has a cup diameter of 17.52 mm / 0.6898 in compared to 17.50 mm / 0.6890 in on the Bruno Tilz 200-0 1/2 C — 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
Both mouthpieces share a medium cup depth, so the sound character from depth alone will be very similar.
Throat Diameter
The Bruno Tilz 200-0 1/2 C has a wider throat (3.80 mm / 0.1496 in vs 3.65 mm / 0.1437 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.