One thing I forgot to mention earlier:
Not surprisingly, most of these wonderful roads weave through national parks and national forests. Skyline Drive goes through Shennandoah NP, BRP is in it's own protected area and Dragon and Cherohalla are in the Great Smoky Mountains NP.
Weather is very spotty, with 60% POP, but it should get better as I continue West. With this part of the trip completed, I decided to set a new goal - Utah. That means due West as fast as I can, at least until I reach New Mexico. The next few days I'll mostly be eating up the miles on the interstates.