Hi all, So what order would you place on instability factors during a pitch correction. Here is a non ordered list of a few I can think of. Please add any other factors that may be significant. plate flex sound board compression changes in bends in wire hitch pin movement tuning pin angle change main wooden frame dimensional change pin block torsional change twisting of bridge horizontally twisting of bridge vertically Regards, Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T. Non calor sed umor est qui nobis incommodat mailto:pianotuna at yahoo.com http://us.geocities.com/drpt1948/ 3004 Grant Rd. REGINA, SK, S4S 5G7 306-539-0716
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