Well, I managed to survive 30 years in business without having to deal with these by simply replacing teflon vintage parts, but now I've got an L action on the bench that needs sprucing up to ready for sale. Some of the keys are at 80g DW(!), and quite a bit of that excess seems to be in the hammer flanges. So I've gotten the "kit" from Steinway, but now I'd like to hear from the experts on the best way to proceed. My 1972 S&S Service Manual isn't much help ("ream the bushing accordingly", with a target of "3 to 6 grams"). This is one of the later teflon pianos, with the improved (ribbed) bushings. Any takers? Thanks, Mark Dierauf
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