The 'lower section' and 'community' type Bands that I've played in have typically had to accommodate less than ideal numbers in each section. To a degree that situation is understandable and goes with the nature of groups who welcome virtually anyone who can play Brass or Percussion. Unfortunately a poor spread of player numbers between sections leaves some not being heard when they should be and others doninating a piece when it would be better if they were quieter. At worst some parts aren't covered at all or played by someone who isn't able to manage the challenge that well (any more or never was). Have other players found that situation in any of their bands and if so how were players 'encouraged' (or whatever else that worked) to move to play a different instrument or part?