Originally Posted by
stan
Hey H, before you play truss rod games, check the neck itself, here is a quick way:
Capo or similar on the first fret. Fret the neck also at the position where the neck meets the body (around the 16th fret depending on type).
Now at the half way point between these , tap the string onto the fret with your finger, there should be just a little movement before the string hits the fret, like just under half a mm.
Just under half a mm is about right, depending on the feel you want.
Too big a gap means the neck has too much relief and you need to tighten the truss rod (for a headstock adjustable one like you have then clockwise looking from the headstock top the bridge)
If there is no gap, not enough, etc, adjust the opposite way.
If these are all good and the action is still too high you may need to adjust bridge height (lower)