Hi, recently, I joined a Brass Band (British-Style) in my city. Now, I am faced with the question, what kind of Bass Trombone Setup is recommendable for Brass Band playing. For instance, what bell size is recommendable (9.5"/10"/10.5"), what alloy (Yellow, Gold or Red Brass) and what bell thickness is best (Lightweight, Standard, Middle or Heavyweight)? At the moment, I play a S.E. Shires Basstrombone and could change Bells easily. When going to Bells section for Bass Trombones on the Shires Website (http://www.seshires.com/bells.html), I can see the different Bell options, but I am a bit confused about what sound characteristic is needed in a Brass Band and where to start from testing different bells. Listening to Brass Band music, I really like it when I hear the Bass Trombone with a lot of core in the sound (e.g. as in the video here http://www.youtube.com/watch?v=xIEsF5a1tzc). What would you recommend for Brass Band playing? What's your advice?