I was wondering that if i switch to lighter gauge strings (I currently use 105's, making a switch to 100's) which way I would have to move the saddles, either shorten the string or lengthen. An explanation of why would be nice to. I understand that if a fretted note is sharp, you lengthen the string making it flat to compensate for the stretch you create by fretting. But I dont understand how the thickness of the string plays a role into this, maybe my brains being lazy. I could just do trial and error, but I'm wanting to change the bridge on my bass, and need to know where I should be placing it, or if I have room to place it at all.