Would I be completely idiotic for suggesting clamping it to a flat plane for a few weeks?
I did that to a beat up fernandes a long time ago, i just set the trussrod loose after getting the strings off and clamped it very tight to two wood strips like they do with a broken leg. Then i just left it for two weeks and made sure there was a little bit of force twisting the right way on the neck.
After two weeks it pretty much regained its original shape and i set up the guitar pretty fast actually(maybe not a good idea), couldnt wait any longer :roll: All turned out fine, allthough i had the thrusrod pretty tight and never relieved it anymore.
I think you get this reaction from the wood because the stress on the wood from the thrussrod was pretty high and a neck just makes a twist in the direction most room is given when you relieve it(the TR isnt always in the EXACT center of the neck).
They say you should not tighten the trussrod more then 1/4 turn at a time, but giving a neck some relief should be more like 1/100 of a turn i think.