You yourself said that you and lacie51 use the same sign company to make your Porcelin-Coat signs which are not really porcelain in the thread
well then I have no idea - we do share the properties of being 14 gauge and having no shelving, but I definitely did not leave a mark when I poked one of my signs last night.
Look at your promises from 2009 you made here.
you're turning this back into an ex post facto inquisition, which we've moved past several pages ago in this thread.