So here's the situation. I currently use a GK MB200 through a MBE410 8 ohm model. So I'm pushing about 140 watts into 8 ohms. I now have an opportunity to purchase another MBE 410. I'd the be running 200 watts into 8 tens at 4 ohms. Or, I also have the opportunity to pick up a used MB210 and use my current 410 as an extension cabinet. In other words 500 watts into six tens, although the power may be unevenly distributed between the cabinets. So....200 watts into eight 10s, or 500 watts into six 10s....your thoughts please.