I got a set of these and installed the front guards yesterday. It took a little bit of adjusting the u-clips to get them tight and the guards flush with the fender. After doing this, I noticed that the barbs on the inside of the clip scratched through the paint or coating on the backside of the lip on the fender.
I'd like to use these on/off for long trips or when the roads are particularly dirty (like early spring) since I prefer the look of the car without splash guards. My concern is scratching to the metal and potentially rusting over time. Can I / should I coat the inside of the lip with something to prevent or protect scratches?