This is a little different from the usual durable question, in that I am specifically looking for products that fill light swirls and give a carnauba-type look. Werkstat Carnauba does ok in this regard. IMO Blackfire does as well, though it actually contains no carnauba, it does in my opinion give that look. I don't have experience with OCW or CMW, but I think those are contenders... Opinions? FWIW, this is for black...