Actually, having dedicated ground circuits are a good thing, if implemented properly. I worked in a chemical plant, and we had grounding circuits for the barrels (to avoid static sparks).
The outlets were bright green, and clearly labelled. Perhaps you should do that too, as anyone with even a little electrical experience will recognize it as a ground circuit. (green).
I have already considered a dedicated ground for my Nomad, as it seems to be extremely sensitive to static shocks. I've stopped the machine a few times simply by touching it. Yes, the ground on the plug is active, but the frame of the machine doesn't seem to be grounded. I need to look deeper into the issue.