Specifically Weds, March 23, 2011. I am an intermediate rider, I like technical and would like to try Poison Spider or the Porcupine Rim. Can those be done in 4-5 hrs? I have ridden Amasa back, slickrock and a few others over the years but never those two. They are on the check list. I could use a recommendation on how to find a riding partner if this post doesn't work. I will be there with my family most of that week and that would be my last day.