Monette Vintage AP3 S3 vs Schilke 16C4Heavyweight
The Schilke 16C4Heavyweight has a wider cup diameter, the Monette Vintage AP3 S3 has a larger throat opening.
Cup Diameter
The Schilke 16C4Heavyweight has a cup diameter of 17.20 mm compared to 16.30 mm on the Monette Vintage AP3 S3 — a difference of +0.90 mm. 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 Monette Vintage AP3 S3 has a wider throat (3.66 mm vs 3.65 mm). 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.