I had a similar problem with Quadratec video on installing the Sunrider for hard top. They had the Z clip connection in their video in a different order than the Bestop printed sheet instructions. Wasted 20 minutes in unsuccessfully trying to thread the clip on the Jeep.Thanks for all the advice so far. As for the trouble it was mainly with the green clips and getting the rear window centered in the channel so I could even attack the clips. In watching some different install videos tonight I think the Quadratech video I took as gospel may have actually been making things more difficult than they needed to be and done some things out of order.