Interesting! I'm teetering on the edge of home anodizing myself. From what I read, buffing after sealing will remove the milky coating. I also read about a "de-smut" bath just before anodizing. Finally, I got a pamphlet by the guy who runs anodizeworld.com in Toronto. Totally not worth what he charges, very incomplete, but he recommends titanium as a cathode rather than lead or aluminum.