Just bought this thing. AWSOME! They give instructions on everything NOT to use to on the shields. I have a foam cleaner that I use for my windshield. Not sure what I can use for this shield. What are you all usin', that's safe, non-corrosive (benzadrine I guess is a no-no). So is glass cleaner. Windex? maybe, eye-glass cleaner? Suggetions would be greatly appreciated. Paid a butt-load for this beauty. Don't want to screw up the shield.