Before I install a 2nd string guide on the headstock, let me briefly explain the problem. I just traded for a fretless USA Fender Jazz Deluxe. I noticed that the portion of the A string tuner sticking up above the headstock is noticably taller than the other 4. The result is that the A string strung on that tuner causes the string to ride up to the top of the tuner, resulting in it coming straight off the nut to the tuner and causing a bizarre string buzzing at the nut rather than the string angling down from the nut on the headstock and wrapping itself toward the bottom portion of the tuner. (trying to be clear) The string guide for the G and D strings causes those strings to angle sharply down on the headstock once they are past the nut. I interchanged the G string and A string tuners and that has helped to bring the A string angle on the headstock lower, reducing greatly the nut buzz. Why would one tuner be manufactured taller than the others? I think a 2nd string guide catching the A and D strings would work in that it would totally solve the problem, but am I unnecessarily disfiguring the headstock?