Russ, We had a similar level rider in our group this weekend. He would flame out on simple, nearly flat areas because he just didn't understand the clutch/throttle basics. I spent just a few moments and explained what he needed to do, then rode next to him on each obstacle and yelled instructions at him... Usually 'more throttle! more clutch!' it didn't take long, and he was able to ride with us. It's crazy how just a little proper coaching can make such a big difference.
Marsh, if you haven't ridden Hells Revenge or slick rock bike trail, you owe it to yourself to do it. If you have, 'behind the rocks' is one of my favorite. If you have the desire for a longer harder ride do poison spider- golden spike- gold bar rim combo. You just need a second truck to get you back to the beginning.