Not to jack your thread, but since you're talking about anti-fog. Have you heard about shaving cream? Gillette Foamy works great (any foam shaving cream should work). You put some on, smear it around with your finger, then wipe/polish it off with a lint free cloth. Works great on bathroom mirrors too... you can steam the whole bathroom up and you will have a fog free mirror... it's amazing how well it works.
I couldn't find it at the web site but don't have time to look right now. However, I have used several things to prevent fog, most of which work for a day or two, then need reapplication. Dishwashing liquid works like the shaving cream, just a little, smear it around, polish off. I have a couple of other products that work also but do need reapplying after a day or so or riding.
I have had mixed results with the Fog City. One worked great. I must have made a mistake installing the 2nd - it fogged instantly one morning and when a Fog City fogs on the inside there is no way to wipe it clean. Nothing to do but open the shield quickly and pull over to rip it out!
'02 in black - the real BMW color! (Now gone to a new home)
Vann - Lifer No. 295
I've used both Progrip and Fog City. The concept is the same but the Fog City adhesive seems to last much longer. Either one is a 8itch to install but they do work if you get a good seal. The light-sensitive model doesn't do much if your shield blocks UV light though.
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