Good point. You're absolutely right. If you look back through my build you'll notice the fenders started out white. After the first long high-speed trip the front of the fenders were badly chipped. That's the reason they were resprayed with bedliner. They've been holding up pretty well since then but are still getting a few chips. As for the front of the trailer, I had my two water cans mounted across the front for a long time and they protected the front of the trailer pretty well, but since moving them to the sides, I'm definitely getting more chips on the front of the trailer. I've been looking at different options for a stone deflector. The one I'm considering is a fabric one that attaches with elastic ties to the back of the truck and to the front of the trailer just below the tongue. The elastic ties allow full movement of the trailer and keep all rocks and stones below the tongue. Got the idea from the Aussie built UEV 440.