The local body shop supply had some 3000 grit liquid polish. I might try it. I heard that the amount of polishing time required is extreme which is probably why no glass shops offer this service. I've also wondered if spot polishing just distorts the view through the glass (is the cure worse than the disease?) I'd be interested in hearing about other members results as there is no other practical option. The last time I got price on side glass for my Demon doors I was quoted $900! I wonder what a Cuda runs.