Hi All, I recently picked up a 1977 fretless P-bass. I love the way it sounds but there is one small issue. I was playing with a tuner yesterday and noticed that starting with about the 7th "fret" my fingers need to be in different places on the D and G string than on the E and A string in order to stay in tune. Specifically, I need to place my finger about 1/4-1/2 inch lower (toward the headstock) on the higher strings (open strings and harmonics all in tune). Is this something that futzing with the bridge can fix or should I bring it in for a full setup? Or do I just need to deal with it? Any insight would be appreciated. Thanks!