Hi Guys,
Honestly I've always used fine steel wool. It will remove all the unsightly stuff and take off the high spots that you can feel, but regardless of that it's the plating that is breaking down and allowing moisture to get to the base metal which is what is corroding.
Well that 17 inch model 45 is looking brilliant Simon, but then we've become used to your level of workmanship, it's simply first class and better than any factory finish that we've seen.
Cheers,
BB.