For those of you that have run sound for quartets or groups that had good bass singers in them what mic(s) have you used that gave you the best sound/performance? Do you prefer dynamic mics (SM58, OM7, 835/945) over condensers (AE5400, SM86, VX10) and why please? Are there any additional tips you all might have in how to get a good sound (clear and not muddy) and to avoid feedback which seems to plague many bass singers?? Thanks...