Looks good to me. I staked my tarp sides to the ground last weekend (same tarp) and still had a goodly amount of room. I really hadn't thought of closing off one end. That's interesting.
Send some of that rain to NC please.
"Civilization is the limitless multiplication of unnecessary necessities." - Mark Twain
“I go to nature to be soothed and healed, and to have my senses put in order.” - John Burroughs