3 sets of hands, will make the job much easier, than trying to do it with two sets. Misting the rubber grommet & windshield with a 50/50 mix of dishwashing liquid & water will help, as well. The pull-cord method works great if the rubber grommet is good quality & the rope is woven nylon or polyester. I have found the 1/4" tight-weave rope is the best.