Jeff and list, Concerning leaving FAC numbers in piano, why is it that the numbers change a little from month to month? (slight, say .3) It may be close enough not to worry about, or is it? I've done it enough to see that it isn't just the way I measure. Over several years I've kept track of numbers and their changes and wonder if it is valid to use old numbers. Any feedback? Thanks Jim Busby RPT BYU
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