Nancy has the tee shirt "I drove the Top of the World Highway and survived".
It was dry and almost firm the day we drove it. One morning the manager at the campground in Tok advised us "If you want to take your coaches over TOW, today is the day!". It was a sunny day after a light rain and he said the sand would be packed reasonably firm and "as good as it's ever gonna get". So, we quickly packed and left. Had an easy trip and great views along the way. Still left serious dust cloud in our wake - had to leave 100 yards between our tow coaches for part of the trip.