i keep looking at my car and i think the rules commitee should look at this again. if this has been an aero issue before, going to lexan with braces isn't going to be much of a help w/o having the window roll up into a channel. i know the aero around these windows isn't the greatest, but channels would be a lot better and would hold the window in and we can keep our glass.
i would send this to the rules people, but don't who or where to send it to.
john