Paul,
Ah, that explains it. The flat black used to paint the "UNITED STATES ARMY" on helo drab machines usually fades to a charcoal grey, giving the same degree of contrast as OD on flat black. I didn't get a long look at that 160th machine at Hood, but what I did see was pretty awesome. Maybe its just me, but it looked meaner than the other UH-60As it was sharing the hangar with. LOL
Of course that bulbous nose radar doesn't help much either !