Hi Terry, Reading in my old pianotech book it says: For newer pianos damperspring weight is in the bass about 100 grams, midpart about 90 grams and in the treble about 70-80 grams. You measure this with the action out on your work bench with the action on it´s back. You take the measurement on the woodpart of the damper just under the thread. If you think the spring is too strong just loosen it a little. Just beware of that if you loosen them too much the piano may start "ringing". Well, you´ll see what happens. greetings from Linda Strahle Sweden -----Original Message----- Subject: Damper TouchWeight I tuned a 1970s Everett Studio the other day. With sustain pedal depressed, DownWeight was around 50 to 55 grams. Without depressing the sustain pedal, the touchweight skyrocketed to about 95 grams. Clearly this is toooo "heavy". Are there any guidelines for both verticals and grands for how much downweight the dampers should add??? Thanks. Terry Farrell
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