I find that when I drive with the top off, the wind coming off the top of the windshield - especially at each corner of the windshield - is not deflected high or wide enough to clear the roll bar. This causes a lot of wind to deflect off of the rear roll bar and into the cabin. I found that while driving, if I used my hand to "extend" the top left corner of the windshield, the wind buffeting was reduced substantially. So, what I was wondering was how hard would it be to create a "windshield top spoiler" (similar to the one found on the latest Mercedes convertible - http://youtu.be/K1ipo8xDV8s ) that could be installed when the soft top is removed and would deflect the air higher and wider to clear the rear roll bar. Has anyone thought of this before? I was thinking that one of the fins from the hood would be about the right size and shape if it could be secured to the top of the windshield.