Did a little work on Bookwus on my last ride through there. The skinny to the log was already broken and off to the side. With out nails and hammer it wasn't going to go back in its original place and stay there very long.
So did the best I could without tools and built up a little rock roll to get onto the log. Turned out pretty well.
Figured I would post this to explain what i did, so it did not look like I went and deliberately altered the trail, as the skinny was a fun feature.
If the builder wants a hand to go in and rebuild the skinny and re-enforce the exit ramp I would be happy to help.