Im thinking of using a long strand of the male half of a velcro strip - and gluing it to the both sides of the leading edge of the windows. That should reduce the friction from the old rubber to glass that actually causes these issues in the first place. Its either that or buy some OEM track felt and replace the rubber with it. That rubber is the devil! Opening up the front track to reduce friction will work, but will slightly increase road noise/water seepage