Why would you take a perfectly good tarp and cut it down when silnylon is relatively cheap. I would just start from scratch after expeirimenting with a poly tarp..
First of cource I would try adding new guyline loops. I wonder if it would work if you added loops along the ridge line effectively shrinking the size down and leaving the option of using the original loops if need be. It would definatly flap in the wind though.
Don't realy know about size...
Scott
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I had superhuman powers, but my therapist took them away.