I used sand paper on the rough cast, that part was a lot of work, but once it evened out with the rest of the frame, it was steel wool all the way. I used three different levels of steel wool... but it all worked out well. I finished off using Mother's Aluminum Mag polish. It's turned out like chrome. I guess it was about a month or so from start to finish - just for polishing.
After that stage, treat the frame just like a new car. Wax it! It will help prevent the oxidization, and will also repell the elements. You'll even get a little extra shine! You can't go wrong with that...
My bike will look fantastic when I'm done... LP smoke DB windscreen, Graphic Art LED flushmounts and clear brake lense, an Extreme Graphic undertail, and a brand new full Hindle high mount system with a Titanium oval supersport can. I've also painted the side farings to get ride of the charcoal along the lower half, the rims have been powder coated in semigloss black, wrapped with D207's (Ick...) until they're worn and I can stick on the D208's.
Anything I missed?