Ok. It's certainly not the hardest trail in the world, because I don't think anything the reservoir is. In fact, a google search reveals that the Powerline Trail on Kauai in Hawaii is the hardest trail in the world. Although, looking at pictures and reading descriptions of it makes it sound like it's a fire road. That doesn't that difficult.
But anyway, I was riding my Redline last night at the reservoir. It was nice, I don't think I'd ridden my singlespeed since Christmas Eve. I also discovered where they hide all the man-made stunts- some of which are cool and some aren't very well constructed (a lot of rocks kept buckling under me), but that stuff isn't really my thing anyway.