Yamaha Flange Pinning

[Farrell]

1979 Yamaha G3. Owner is an advanced classical player.

She described a lack of control - action too light. DW seemed OK (didn't
measure), but hammer flanges were down in  the two-gram range. I recommended
either repinning or replacement. I've used alchohol/water to loosen a set of
bushings, but does that also work to increase friction? Or is that a
technique best reserved for spinets - perhaps a nice Yamaha owned by a good
pianist needs a proper repinning???

Terry Farrell