full bra is terrible for the paint. think the rock chips are bad put a bra on for a while. doesnt allow the paint the breathe. sun will fade the paint differently. At high speeds the bra flaps & rubs the paint.
Touch-up paint is ok for stopping rust. cosmetically it don't look good. re-paint is expensive but the best way to go. Permant markers work great for certain touch-up areas
A clear film is available for front end protection can be applied to hood, fenders, bumpers, headlights. cant be removed just like window tint & and has not longer term effects on the paint.