I don't mean to be offensive, but so many of these brass transcription projects are just so trumpet driven. This isn't for me - even if these guys and gals can play.
That's because a lot of these projects are arranged/transcribed by trumpet players, Barry. Trumpet players, and most low brass players I know, are very much in to arranging and transcribing music. It really started when Maurice Andre began performing oboe and violin music. I'd imagine you know how little rep there is for the brass family, outside of the horn. And, horn players are always too busy telling everyone how difficult their instrument is to play, they have little time for arranging.