There's been a lot of chatter on the forums about hanging the stock tarp... people advocate both ends of the spectrum... Hang from the tree or hang from the prussics. If I remember correctly someone hangs one end from the prussic and attaches to the other to the tree. Kind of a figure out which way works best for you situation. The important issue in terms of bad weather coverage is getting down close to the bugnet. But not so close that your breath condenses on the tarp and rains from underneath.