Well this thread came to late. I sold my ten year old 1800 a couple of months ago to buy an Electra Glide. There is no question the GL 1800 is the best handling cross country touer ever made. Sorry Harley. You look better and sound nice but for big mileage the GL's the way to go.
Now about off pavement. Three years ago I was riding Parsons Branch Road deep in the Smokey Mountains on my Dakar. About halfway through I came upon a guy with his wife having a picnic, they were 2-up on a 1800 Wing. I told him I had a Wing in my garage but would never take it this far into the woods. I saw them later at the Deal's Gap store so I know he made it out. He really earned the shirt.