Rim inner diameters are described in decimals from .630 inches to .680 inches.
Medium (similar to Wick B cup) and Deep (similar to deep Wick cup).
#19 on medium cups and #15 on deep cups
Feels softer on the chops because it has more give than metal. This is a great advantage for players with braces.
Not as slippery as silver, giving more grip.
Added grip makes Delrin mouthpieces feel smaller than their metal counterparts with the same size designation.
Not as smooth as metal, so some players may feel slight chop irritation for the first day or two while they adjust.
More comfortable to play in cold weather because they feel warm on the chops.
Plastic mouthpieces are more responsive than brass, making soft entries more secure.
Articulation less crisp with less point at the front of the note compared to brass.
Darker sound than brass.
Less core in the sound compared to brass.
Wedge Generation 2 Line - The Generation 2 cornet mouthpieces are designed to incorporate the advantages of the Wedge rim and oval cup in a mouthpiece that is very comfortable and easy to adapt to from a conventional rim. The rim is slightly wider than our original Standard Brand rims. This mouthpiece has our new Double Oval Cup (DOC). The diameter of the rim and cup in the vertical dimension is 10/1000 of an inch larger than it is from side to side. This means that the oval shape of the Wedge rim is continued down to the base of the cup where it joins the throat. The DOC design, found only in Wedge mouthpieces, provides the added efficiency of a smaller mouthpiece with the big sound, clear attacks, and flexibility of the larger mouthpiece.
Acclimatization - Acclimatization time varies, but most players find they have fully adjusted to the new rim shape within a few days. Most players are able to alternate between a Wedge rim and conventional rim, although the vast majority of players will convert all of their mouthpieces to the Wedge design because of its obvious advantages once they have adapted. We do offer discounts to players who need to purchase a number of Wedge mouthpieces for various instruments.