Before posting any criticism of brass you should look into the other attempts at physical modeling brass, mainly the Yamaha VL series.
Heres some good audio examples:
http://www.patchmanmusic.com/yamahaVL70m.htmlThis is what interests me in brass and this is what sets it apart from ALL OTHER brass plugins.
Physical Modeling of brass is a vastly difficult thing but it gives you a plugin you can play live in realtime instead of sample and hybrid sample based attempts which are only good if you sit and edit together your track.
I am an actual pro trumpet player and the current demos impress me far more than any sampled trumpet ive ever heard.
but i must say i especially like the trombone at the moment, its character is different than the VL model and ill bet the 2 will compliment each other and maybe after 6 years+ f playing vl70-m im just used to it but i think i like the trombone in brass maybe a little better.
I use the Yamaha WX5 wind controller.