From a a person with trombones and tubas in their youth, THANKS!!!

That is some serious work.

I was fortunate enough to have attended a high school that inherited experimental brass instruments from the military bands. So, while I have to admit my math could not keep up, the discussions of the outcomes of traditional methods of creating experimental instrument brought back some memories of the WIDE range of performance of the various instruments we were provided. (Obviously, we got the not-quite-rousingly-successful experiments.)

That was a herculean effort and it was cool to be introduced to it!

Tom