I don't know about chips but I'm sure it won't sag because isn't carbon fiber a replacement for steel in certain applications? The chassis of an F1 car is carbon fiber, no? But personally even though I LOVE the look of CF I don't want to have any of it (at least not showing) on my car because in my mind that's just telling walker-bys "I'm very expensive, break my window to see whats inside" lol. Just my personal opinion though, I'm paranoid of things like that because of the stories I hear and how so many teens these days do dumb things.