do the black and just ride section 13 few times, theres also a really good piece of singletrack off the 4×4 route, you go down the first decent and take an immediate right after the first jump (i think its a set of doubles), the route takes you to same fire road as section 13, its tight technical and loads of fun
i'm going there tomorrow wet or not, personally i don't think its that bad in the wet, bearing in mind your ridding outside in all the elements, just be prepared to get a bit wet and muddy
Cheers
Nick