The designs for the Griego-Ashton Series evolved from custom mouthpieces made for me over the last 20 years. There are currently 7 mouthpieces in the series including 3 piccolo sizes (trumpet & cornet shanks) and 4 cornet mouthpieces.
Best piccolo mouthpiece for me, clear sound top to bottom. Plenty of lip freedom inside the cup while still providing assistance in the upper register. Great Find!!