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08-25-2013, 05:08 AM #9
I have the same sort of issue. Except my Norton 4K seems to be much more coarse than the Norton 1K. I don't know why but running my hands over the two at once the 1K is noticeably smoother than its "finer" cousin, the 4K. Anyone else have this issue? Do I just need to lap the 1K more or what?