I would think so, I think those have the xlr and regular midi in/outs and all Herbert are midi operated, so even if the xlr didn't work I would think the midi would. I'm sure Pete or Dues will chime in.
Yes. Not sure about the first 3/4 protos, but all serial models do work with Herbert.
You can use either a XLR or a standard midi cable. Both power Columbus with phantom power btw. . .