I was on the highway recently and just had a new blinder installed. I drove into a flock of bugs and one of the splattered right on one of my blinder heads. It was also hot, so it cooked right on there. I tried powerwashing it off but some residual remained. So I took a cloth and wiped it off. Now, there is a faint scuff mark on the head. I know that Blinder sells replacement lenses and that scratches and scuffs are expected. But I am wondering how bad does it have to be before I should replace the lenses? My Valentine 1 seems to have the same type of lens on the front and its scratched to all heck and still works fine. I even asked Valentine if the scratches are a concern and they said no....is it the same for blinder heads?