The way I do it, which may or may not be the optimum way is as follows:manta wrote:So if I suspect my intonation is off, possibly due to a recent truss adjustment on my 12-string... do the forum folks here recommend I change strings first, adjust the bridge first or back off on the truss adjustment a hair? Or a combination of all three?
(1) change strings
(2) adjust the bridge to get the action where I want it
(3) adjust the neck if needed
(4) recheck the bridge, of course, by tuning up and playing all strings at all frets (no buzzing anyway is what I am aiming for)
(5) check intonation at the 12th fret and make saddle adjustments as needed
(6) check intonation at other frets, tweak tuning to get good sound with best compromise