Has anyone tried to prevent the rear window problem by fixing with Window Weld before the window begins to separate from the top? I haven't even bought a car yet, but since it seems that every roadster in the hot southern states has the problem eventually, I thought that I might try some preventive maintenance.

I'm thinking that it might be a good idea to break the existing seal between the glass and the fabric with a razor knife, maybe 6"" or 12" at a time, and then re-seal with the Window Weld. I could work my way around the window gradually, and I could be confident that the glass is re-sealed in the correct position.

I guess that some of you have re-sealed a section at a time, as the seal has come loose, but has anyone done as I am suggesting? Also, does anyone have opinions concerning the merits of using black Window Weld vs. amber? Would the black be less noticeable?