Ours shield shows a lot of scuffing and dings from rocks etc. A lot come out from under the Mh and flap and tumbles over the shield and onto windshield and roof etc of towed. the front end of car is 100%.
They work but I don't think they design the locating or shape according to test behind a MH with a mud flap and or rear radiator, for sure.
The one that goes on the bottom of the tow bar seems like would be more protection for towed but I am not sure. It might be just better, for parts of the towed. Both together?
Some kind of diverter mouldings, or whatever on the rear, of the coach seems to be in order. The tublence behind MH is huge. Any oil seepage etc, and rocks can end up on the top, of coach as well as roof, of towed. I you smell oil blowby it could be becaause fumes are being sucked up to the top, of coach and into rear camera opening.
The shield works to a large degree but we still have to clean the car from being towed
