if its slanting down into the body you need to take the back of the guitar apart and LOOSEN the two screws that go into the body and hold the springs. Make sure you do this evenly...make a mark on the screws or something before you fuck with it. It takes a while...loosen them a little, then tune up and if its still slanting down loosen it more and more until the guitar stays in perfect tune and the bridge is parallel to the body.

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