Don't worry about the friction, it floats around a lot from season to season. Get some 1/2" weights and try to get a few down into the ball park and see how it feels. That is the ultimate test. Get your books and papers out and especially what David Stanwood has to say. This piano being what it is I would suggest going ahead and touch weight it out and don't worry about the friction or the spring tension unless they are bent out of shape. Too high a tension on the springs can be a touch problem but if they feel OK then go for the balance weight. Good weighing but you checked Fs not F#s. It is good to take measurements of both naturals and sharps to see if there are substantive difference between the two. Newton
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