@howardlee Thanks for the clarification on the RDX. I did not notice the V vs. X differences at first. The dual side is certainly a plus. One down side is that it does not handle 7/10". Don't have that many but something to consider. Rick from Joy Of Vinyl seems to be happy with it.
@joenies I looked at the CA. The motorized fluid application is a bit over top IMHO and also not needed in my workflow. Certainly nice if that is the only cleaner.
@daveyf Re Nessie looks similar to the VPI, but indeed could not find a US source.
Currently leaning towards RDX. price is right, dual side action is a big plus. Have my reservations re durability, but may take a gamble.