you are using pole spikes?
You got my vote for RA2 Wizard. Always and forever.
Yes, there are 2 blacks. That covers 1600 power output. With 4 HPZs and 2 DDTs, you have an intake of -2600. To get the full power of the DDTs, I think you need 4 blacks. Although I know that spin motors don't require full power, so I'm not quite sure about this. I couldn't find Click's thread on power intake, so can someone back me up on this?
For a typical HW popup with 4 HP Z-tek drive and 4 DDT's, you need 100 (x4) + 312.5 (x4) = 1650 total BEMIOR, which is about 2 Supervolts.