Unison Flatter than each Individual string?

[David Ilvedson]

Actually I have done that on occasion but I can't say as I could tell any difference with the overall tuning...
How does that bear on my post?

David I.

>David,
>You need do some exploring and begin comparing results.
>Take (say) A4 and measure all three strings. I use the Accutuner and  will
>set it to the 2nd partial A5 and take a reading on the left, center, and
>right string.  What will astonish you is that the readings might be
>something like..
>7.2 for the right
>7.4 for the center
>6.9 for the left
>The reality is that even when we "think" the notes are perfectly in tuned
>with each other they actually exhibit differences in partial readings which
>will ultimately effect your octave tuning.
>So take those readings and add them together (21.5  and divide by 3 and you
>get 7.16. Taking the average of those notes will and does affect your
>overall outcome. That's why in the earlier days of Accutuner development Al
>Sanderson, and I think our own Professor Jim Coleman, Sr, advocated taking
>the average of those 3 strings to enter into the FAC equation and not single
>string readings. Mind you , we're nit-picking and splitting hairs, but the
>differences are obvious. Now that's the computer world trying to make sense
>of pitch.
>In the aural world we too can exhibit the law of averages by tuning all 3
>unisons and essentially arrive at the same point.
>Tom Servinsky, RPT