I had an oldtimer do my windshield, rear window, and corner windows for $100. Best $100 I ever spent. He had everything done in an hour. He used a bone instrument to work the rubber and glass. Nothing more than windex as a lubricant. He only used the string method on the windshield. The corner windows and back window ,the rubber went on first and then the glass was worked in with the bone tool. He thought that the quality of the rubber had gotten bad over the last few years.