GSSP - Securing sun tarps,
Like to add: Consider adding a few "bungee cords" to absorb the wind gusts. place bungee at either the corners or in middle sections where wind collects. Bungees divert a huge load off your tarp tie offs and grommets, avoiding tears. Wind eventually spills off. We like to add the greatest sun shielding we can raise easily and manage to pack in our camping kit. We use the inexpensive tarps with one side aluminized, lasting so far for several GSSP outings. Nothing lasts forever, so plan on wear and tear (eye tears when buying replacements). CU in 2015!