My wife and I are planning a trip to Arizona and Utah in September, and one of the planned highlights of the trip was to be a descent on the Moki Dugway towards Mexican Hat, Ut. My son did it in a car a number of years ago and said it was nothing short of frightening, and several YouTube pieces, one shot from a big tractor-trailer rig, seem to confirm his impression. I'll be riding a, R1200GS, 2-up, with a lot of gear. I'd be very interested in your observations relative to safety, etc., based upon your personal experience.
Many thanks, Upsandowns