The 100GS is the little brother to the 101GS. The rim diameter is slightly smaller than the Bach 5 series mouthpieces and very close to the Wick 6B rim. The cup depth is very close to the Bach 5GL and deeper than the Bach 5GS, Schilke 51B or Bach 6.5AL.
The 100GS is a great alternative to the typical 5G symphonic style mouthpiece when a bit more brilliance and projection are desired, along with extra support in the upper register.
Available with large, medium, and small shank.