I have a M/M Sterling HS, which I love. The problem is that the saddle heights are all out of whack. The saddles on the bridge have been lowered all they way down. what do I do? I know how to adjust them up & down. However, could someone please give me some guidance with how they should be set? I know how to adjust the neck, but I would like to get the saddle heights correct. what type of measurements or steps should I take. Thanks in advance.