[quote name='Muppet' post='131469' date='Jan 31 2008, 06:56 PM']When you've SET the intonation then you can tune however you like to whatever note you like, though 12th fret harmonic is a good option. Checking fretted against harmonic will show you whether your intonation is correct allowing you to adjust the string length.[/quote]
Now I am confused, or dim, or both....
12th fret is an octave higher than open when correctly intonated? Yes? No?
So, can tuning the 12th fret harmonic to 12th fretted result in that note not being an octave higher than open?
I'd always thought, maybe incorrectly, that a correctly intonated string (intonated to the 12th) will be exactly an octave higher at the 12th (fretted) than its open note. I'm getting the vibes that that may not be the case but can't quite see why.
Interesting point about intonating around 5th or 7th fret.