Hello!
I'm glad that I've find this topic on the forum.
I'm a trumpeter from Russia and play both the modern and baroque trumpet.
Playing the baroque trumpet helps me a lot to "drive" trumpet much more better and also develops many aspects like hearing, musical expression, style of playing etc.
I play the European model with 3-hole sistem made by Egger (Basel, Switzerland). It has a difference with the fingering showed by
mattdalton 
In Russia playing the baroque instruments a not popular. I know only a number of players. And the teaching is not developed at all - there is only a class of L.Guriev in the Moscow conservatory and I'm his single pupil.
I'd like to find and speak to players about the baroque trumpet playing, change notes, articles etc.
Some my question: what trumpets do you play, what mouthpieces, wich books and method do you use? (By the way, I use the school by E.Tarr in 3 volumes).
So, baroque trumpeters, write me!
My contact info:
e-mail:
trumpet-club@narod.ru
ICQ: 329134344
Yahoo messenger:
mailofakart@yahoo.com
Web-sites:
http://alkart.com and
http://trumpet-club.narod.ru