Does anyone have any experience with the clear 3m protective film that you can put on your car that lasts up to five years? I drive a lot of highway miles and on my other cars I have seen a lot of road chips on my hood. Seems like a good product for the bumpers, but I don't really know if I would trust putting it over my painted hood. Should I go with something like this or a regular car bra? What do you think?