I've mostly been playing jazz for the last several years. However, in the near future, I may be asked to do considerably more symphonic playing. My Al Cass 2-28 is a wonderful mouthpiece, but it is quite extreme. It just sounds too harsh when playing symphonic music, and the throat is too tight. Lower notes tend to come out sloppy. When I switch to my 3C, things sound how they should. But switching from the Al Cass, which is very small, to the 3C, which is quite a bit bigger in all regards, really messes with my chops. My intuition is that going with a mouthpiece that has the same rim diamter as the 2-28 (15.6mm) but a deeper cup and open throat will remedy this problem. Is this the way to do it? What do those of you who have to play both symphonic and jazz do? I don't want to switch to an "all-around mouthpiece" because I like the sound of the 2-28 in a jazz setting, and I've been playing it for many years.