Slick, I just tried some Wenol on my aluminum vc's and although it won't get the etched in stains off it seemed to do a good job for the small area I tried. My buddy swears by simicrome but you can't find it anymore. I ordered the Wenol thru Summit. Another product I've heard about but never tried is called Flitz. They have a website if you're interested. I've tried all polishes since changing from chrome to aluminum and just haven't found anything that works real well by hand.