Zach, that's great to know about Barbour Fork being easy. I'm relatively new to the trail driving scene and it seems there's a HUGE variance in what is "difficult" and "moderate" depending on the author. I've been using the Funtrek's guides and TrailDamage and so far everything's been pretty easy for the 100, even if they rate it moderate to hard. I need to try out some harder terrain.
Nakman, thanks for the heads up. I ran into a situation today with ambiguous closures and it's made me realize some recon work before the trip online and over the phone can really pay off.