Was looking at some MIM and Am Pro p Basses and jazz Basses today. Several of the MIM jazz Basses had string that were shifted to one side of the fretboard by about 1/16". I could not see where the bridge allowed side to side adjustment of the strings to help center them. Is this adjustable, or is this luck of the draw with the MIM instruments? The MIM p Basses and Am Pro looked good. It was just the jazz Basses that were off center.