Percussion DOES take a long time to set up at times, yes, but it's worth it in the end. Some people knock some percussionists for lacking rhythmic accuracy but certainly in the lower sections, so do quite a few of the brass players, but that's all right, I suppose.
I'm an inexperienced part time percussionist (I'm sorry, I'll rephrase that, I've attempted areas of percussion but wouldn't be so arrogant as to class myself as a 'percussionist') but involving myself in that area made me appreicate what needs to be done (not least, sitting around doing **** all in a lot of rehearsals - rather like being a trumpeter in some orchestras...)
The sooner ALL brass bands accept that percussion is as vital an element in bands these days as the brass themselves, the better, in my view.