Aren't you guys suggesting building up the key sides presuming that the replacement keytops are the width and shape the keys are supposed to be, or once were? That's not often the case in actual pianos. There's lots of variation among key sets, and if the key appears undamaged, the new keytop should be trimmed neatly flush with the key sides, with top edges rounded over to suit. Neatness counts. Entire rebuild jobs are very often evaluated starting with the finish (if it was re-done), then the keytops. Ron N
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