I have a 2012 Fender Precision V that is fantastic in so many ways. One flaw I noticed is that the D string does not tune easily. I believe this is because of friction with the string button it shares with the G string. It seems to me that the break angle of the D sting is pretty severe. This causes the string to catch on the edge of the string button. I think I could do one of two things to fix this: either move the button further from the nut or replace the button with something that does not have an edge like a string tree. Has anyone encountered this problem? What did you do to fix it?