I have decided that my next major purchase will be a tarp. I have been using a simple poly tarp. It is heavy. I want my new tarp to be light, and as I am starting on an ultralight journey, I want the best. Cuben is by far the lightest. But how durable is it? I am rough with my gear, and I need something that will hold up. If silnylon is more durable maybe I should go that route. So tell me more..... What is the lightest but most durable tarp? I want this new tarp to last me years and years.