Thanks, Kip, for the heads up. We generally don't go over 40 mph unless somebody is on our butt, and that air coming in is great when it is 95 degrees or so, like it's been this year. But, thinking about it, that type of ventilation was designed for low speeds. If your truck is geared for freeway cruising, close that windshield! That's like riding a motorcycle without goggles or a face shield! I learned that a LONG time ago.
