I recently bought a pair of l50. I bought some blue fabric from Huntley Audio, but once I got around to stripping off the ratty old brown cloth, I found the plastic grille base to be in very good condition and almost as transparent as L166 grilles. I like the way they look without the fabric and was considering painting the plastic grill base with spray paint. Has anyone tried painting these grilles. If so, any issues to consider besides the obvious of using several light coats so as not to clog the holes? Please see photos. Thanks in advance.