After four years it was bound to happen. Had my first glass break. My Z threw a rock across three lanes of traffic and tagged the driver's door on a vehicle traveling about 40 mph. All the luck... Fortunately the window had tint film on it and held together and noone was hurt. $265.00 and they're on the road again. At the time I was running the Z with the chute down. I was wondering if anyone had experimented with a rubber flap at the end of the chute to knock down heavier objects.