As many of you know, I use the Asymmetric's made by John Lynch. I endorse these and Felix does market them via the NYTC.
That having been said, I do still, ocassionally, play conventional mouthpieces (turned on a lathe as opposed to being special cut on laser/computer guided tool and die machine).
Felix has desinged a new mouthpiece. I played the prototype last summer and posted about it. His finished product is ready to go! In fact, since the mini-fest in Chicago, the box of mouthpieces he had there is about the last thing left to ship back to him!
I have played his mouthpiece quite a bit, and I highly reccommend it. For ME, it would play just fine in ANY idiom - legit to jazz to lead. I found it to be quite flexible. I could just drill out some nice double C's on it and yet sitll play soft and pretty.
Felix, jump in here and help me out if I mess up.
I believe it is loosely based on an old Bach 6B, which is one of my favorites. However, it has a completely different cup. I don't know what the backbore is.
If you're looking for something new to try ("if?" hehe, hehe! we're trumpeters! We're ALWAYS lookinf for new stuff, eh?) you really ought to try one.
When you do try it, do be sure to try adjusting the placement on your chops a bit as you experiment with it. If thee is one thing that I've learned from playing an asymmetrics is that I can PLAY absolutely ANY trumpet mouthpiece if I do this. The level of comfort and success then depends on the fit for me.
Stage 1 trumpet mouthpieces...
Give Felix a call and give them a try.
Peace, all.
Nick