You still have to fit it to the light. I cant see what custom cutting it would do to help, because you will still have to shrink and stretch it around the light. I actually think it would make it more dificult. It sounds like a good idea, but just sell it by the foot. The larger the piece the easier it will be to form around the light. A small piece you will be hard pressed not to get a finger print on the adhesive, and on clear vinyl, your screwed.fog lights will be fine cut, but something with so many curves, like the headlights, i would just apply then cut.
Just my $.02 but what do i know
