I just cleaned my cases based off the article posted on this site, same products and cleaner. I just took them out, and they look pretty much the same..? I used small beakers that fit in the cleaner with the lid on. 50% vinegar, 50% water, and the drop of dish soap. Then the Birchwood cleaner, diluted as the bottle says, then water, and the distilled water, all for the said time. Did I miss something? Should I not use the beakers?