First I put the black sealer all around the metal portion of the windscreen perimeter. Then I put the rubber gasket on the glass, dry (no sealer yet). Not using the rope, I set the rubber-perimetered glass into position in the metal frame, which was all "buttered up" with the black goo. Once in the general position I found you can grab the glass on both sides (at the same time, two palms) and actually move it into "near final position", about a quarter inch in all four directions. After setting the glass/rubber into position I had to "work" around the perimeter with a metal edge to "set" the glass and rubber lip into final position. Once set in place, I then peeled back the lip of the rubber against the glass and put another very thin coat of that black sealer (got it for free from a local installed who offered some advise but didn't want to take on the job, nice guy) into that space.
Tested it with cups of water, held just fine. After two years and 6500 miles, she still repels water
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If I had to do it again, I'd do it myself, but not for anybody else
Good luck!
I overheard a guy talking a while back about the sealer in the window. He said he used a needle and saringe (think I spelled it right) from tractor supply. Said it was for large farm animals. After the window was installed he would squirt it in with that. Sounded intresting but I havent tried it.