Best Rock Guard

I have a fiver with one of those high quality paint jobs. You look at it sideways and it chips. The lower front was painted three times before I bought the Rock Tamers. Now three years later, I have touched up three spots where errant rocks got to it but otherwise it still looks perfect. The Rock Tamers are set to just clear the ground when the RV is loaded to minimize to chance of a rock getting by. They have worked exceptionally well on my SRW, but a friend with a painted rig and a dually has had more chips. It may be due to the extra width added by the second tires or how far they hang off the ground. But I am a believer.