Very nice! I leave my guylines tied to the tarp with bowlines but could instead put a shock cord between the bowline and the tarp. I leave taut line knots in the stake side so I can easily slip it up or down. Works like a champ. For those not wanting to mess with knots you could also use one of the niteize tie down devices: http://www.niteize.com/collection/Ti...nd-Bungees.asp
They have some pretty neat technology.