You can still isolate different elements and tweak them.
That's exactly what I did myself and now do to others.
I stil play your mouthpiece. We met in Paris (France) at the Trombone Festival.
You managed to give me a mouthpiece in five minutes that bettered my Hamilton. Great job!
In the mean time I also play good at a Greg Black 6.5 AL. But it's smaller and (of course) also the sound is lichter. But it costs less air.
I hoped to see you a week ago at the Slide Factory in the Netherlands, but you weren't there. Do you once visit Europe?