I fitted some aftermarket seals on the blue spots a few years ago, they were sifam brand. I've had no problems so far, but I may have been lucky. [size=1em]I 'lapped' the ends of the pots with some fine wet and dry on a glass table and polished the journal surfaces with a bench mounted industrial buffer. Other than that I wouldn't recommend taking any abrasives to the pots as others have stated. If any of the pots are very badly pitted replace them. I had to replace the pot on the rear brake. [/size][size=1em]I'm with everyone else fella, buy the very best you can afford and if in doubt seek the help of someone with hands on experience or your local bike mechanic.[/size]
Treat everything in life the way a dog would- if you can't eat it or foc it, forget it.