Modded, vinegar wont do anything to the paint right? I tried your method tonight already on the windshield, mixed vinegar and water 50/50 and used my clay bar, just did the front windshield for now too see how it works. If its to my liking then ill do all my windows then rain x them hopefully preserve it a little longer.
Regency- if the above does not work to my liking then im going that route on the vid.
Sheriff- if none of these home methods work then i will be seeing a high end detail shop. I have used that cream/acid stuff before and it absolutely works like a champ. Makes it look like you can reach through the glass. Thats what im looking for.