For those who are curious..... I've been using the new Schilke Symphony model mouthpiece (model M2) and it's really fantastic! The M2 is similar to a Bach 1 1/2C. It has a 24 throat and a half schmidt bb. It's a bit more rounded at the rim compared to a bach 1 1/2C or a Laskey 70c. Feels similar to a 1 1/4 rim but a bit smaller.