I here ya man that FL sun is wicked tough. That's probably what caused it to start yellowing in the first place. By where the damage was though, it almost looks like someone could have been buffing the car hood area and overlapped onto the headlight causing it to prematurely wear and start to yellow. I'm pretty sure your headlights are plastic and not sure if it's to good to be buffing it etc. That's just my .02 , I could be completely wrong.

It's good to see an Orlando cat on here though. What kind of mods you got, do you ever go out to Orlando Speed World Dragway?