I don't know where you spend most of your time in JV, but when you do go there, the better places are to the very North. I never venture down to Soggy. Camp at Anderson, head to North Anderson and go East and stay in those mountain ranges and there are a lot of nice single track. I don't know the type of riding you like to do, this is single track, but also a bit rocky but not all whooped out, beaten to death shit. You can ride this stuff all the way over to Means and stay way North and there is a lot up there.
Just 2 weeks ago Paul Krause laid out the course for the Rovers race up there and cut a bunch of new stuff. I will say, that is one of the good aspects of JV is that being an "open area" there are new trails opening up when creative clubs put on a race and are willing to put the time and effort into building a course that doesn't utilize the same old beaten shit over and over. I have a couple of friends in the Rovers and they spent a lot of time out there in 100+ degree heat helping putting that together.