No one I've heard of (including me) has been willing to test-drive the product. I offered to do it on my last trailer if POR fronted me the product, but they weren't willing. I have, since that thread, come up with at least 2 other similar products- one impressive item developed for NASA space capsules ( name escapes me). They are all slightly pricey, but you are promised large coverage for little product. It all comes down to someone stepping up and being the 'guinea pig' !
"If aluminum isn't magnetic- why am I so attracted to to it?"