a small palm sander would probably help alot and beat the heck out of hand sanding. you just have to spend the time to make sure you get all the scratches out that are left from the first grit of sandpaper before moving on to the next. and it's a little harder to tell with an orbital. my buddy's front wheels looked like that. i started with about 150 or something like that on his and worked my way up. then used emory on a spiral sewn and emory on a cushion buff. every time i tried to use tripoli or white, it got really hazy. and i had less than a day to do this one so i just left it as it was.
