I have come to a decision about the underside of my Midas project. It's going to be a nightmare to paint underneath the body (I will be doing it myself) and although it's not a "factory" finish, I'm considering doing the bottom and arches in either a hard-wearing paint or perhaps an underseal-type product.
The question is, as I don't need rust prevention, do I need an underseal-type finish or would a decent paint be good enough to survive stones etc? What do people recommend I should use?