OK, let’s try again, shall we?
From an ETD I send pixelnet to an LE on the left side of house. From this LE dmx outs are sent to:
1. pixelnet input on hub#1 and
2. to another LE on the right side of house via cat5.
From dmx out LE on right side of house I send to hub#2 set to universe 2.
Would someone confirm this achieves what I set out for in OP? 1-128 DMX on both sides of house and remainder in pixelnet. Actually I think this make mores sense than first idea.