Based on my recon several weeks ago, I've updated my recommendations as to the most appropriate type of bike to ride during this event. Below is the update I've posted on the first post.
Additionally I've come up with 6 routes for the groups to explore and have linked to them in .gpx format.
What should you ride? Your dual sport bike. Will there be routes suitable for both the big adventure bikes and the dual sport bikes? Not really, at least not in my limited experience. The non-paved roads in the area seem to consist of easy class 1 dirt / gravel roads and hard, rocky class 3 dirt roads. There isn't much class 2 riding. For this reason, if you want to ride off-pavement I recommend a dual sport bike, not one of the big adventure bikes. While you can ride an Adventure bike on class 3 it is a heck of a lot of work and not much fun, in my opinion. I'll be on my DRZ-400, not my Wee, for this very reason.
What if all I have is a big Adventure bike? Should I stay home? Well, you could stick to the pavement. Seriously, the paved roads in northwest Arkansas are world-class twisties and are destination worthy all by themselves. Or, if you don't mind riding class 1 dirt/gravel, then there are ample dirt roads to play on. But, if you want more of a challenge and are looking for class 2, then this isn't the ride for you.
My intent is not to discourage adventure bike riders from attending. It is simply to let you know that the non-paved stuff in this area is pretty much either easy or hard, with little moderately difficult (i.e. class 2) available.
Routes: I've planned 6 different routes for us to explore. I haven't ridden any of these routes yet, so this will be a ride of exploration. Here are the routes in .gpx format. Right click and save to your hard drive. When you open any of the routes, don't recalculate them. Quite a few of the roads are not on the map so I used direct routing (vs auto routing) on these routes. If your GPS recalculates the route you will most likely not display correctly.
The 6 Routes