I currently have the Shuttle 6.0 and an Ampeg BXT 8 ohm 410 cab. I want to get the full 600 from this baby so Im wondering if I should trade for a 410 4-Ohm cab or add an additional 8 Ohm cabto use with my existing one. Im just sort of wondering if I should a 15"er or another 4x10? Those seems a little overkill, but yeah. Any advice or opinions on the matter?' I almost feel like I should downsize to a 210 4 ohm cab. Would that be loud enough for medium size venues? We are a country band and our stage volume isnt too loud.