Thanks for all the wonderful replies. Yeah, it's a Jeep TJ (Wrangler, CJ's younger brother), and yeah, the wind patterns are kinda wierd. Low or no doors depending on what the weather's gonna be like. I'm not thinking the wind will neccessarily whip directly up but air pressure might pull it up or such, we'll just have to see... I'll take a test drive around the block when it comes to it and see if there's any real cause for concern. I meant bikers = motorcycle, not too concerned about pedal powered vehicles for exactly the reasons you mentioned.