I'm glad someone finally mentioned edge de-burring. A ScotchBrite wheel is great for polishing edges on thicker parts but can be a pain (literally, if you're not careful) for thin, flexible pieces such as ribs or skins. I personally use the two-edge from Avery but I keep meaning to get the one they refer to as the 'dove-tail' tool; if you slip with the former tool you tend to slice your fingers.
The key, in any case, is to use light pressure. I use the speed tool from Avery without any problem now but it took awhile to get the touch down. Same with the edge deburrers; you are trying to polish off a burr not shave down an edge. Don't try to do it all in one pass.