This is pretty much the mouthpiece I would have been looking for if I'd thought it existed. I need to be able to play warm and precise. I need to be able to play wild with lots of multiphonics. I need to be able to play with punch and strong rhythm. And I need that across the entire range of the bass clarinet.
And then I got to know Syos and the possibility seemed to open up, so I read the full descriptions of all the signature mouthpieces and thought "this sounds like the one". So this is also a tribute to Syos's ability to describe each mouthpiece's characteristics in a way musicians understand, so we can see which one sounds right for us and which other great mouthpiece is for someone with other needs.

Exactly as described on the site—bright, loud, projects really well. Overtones are colorful and the potential for tonal flexibility is immense. FWIW, Legere european cut bass clarinet reeds did not work for me at all on this mouthpiece. I tried some of my tenor saxophone Legeres and they were perfect. I think it's mainly a difference of width near the tip of the reed. No issues with cane reeds at all.