Ok I am sure this has been discussed here in great detail. Please forgive me as I am very much a newbie. I just received this kit and I am not quite sure how to rig it. It would seem that I should run the line around the tree and connect the clip to the line, then connect the second clip to the tarp. Ok I think I have it right so far... Is there a line that goes under the tarp the full length? Or did I buy the line that only connects to the tarp with no line spanning the full length of the tarp?