I just received a 12 foot cuben fiber tarp from Hammock Gear. This is by far the most remarkable piece of gear I have ever purchased. It pitches taut and weighs about as much as a peanut butter sandwich. If you are considering a cuben fiber tarp pay the extra $15.00 and get the 12 footer. If this was on an earthquake scale and the 10' 10" is a 5 then the 12 footer would be 10 times better at a 6.9.!