A method of adding at least one more string to a stringed instrument having an initial plurality of strings and an initial plurality of tuners equaling the number of initial plurality of strings, wherein the stringed instrument comprises a headstock on which is disposed the initial plurality of tuners, a neck and a body coupled to the neck, wherein among other things, the headstock has a front surface, a rear surface and at least one side planer surface and at least one elongated bore in the side planer surface and wherein the headstock further comprises at least one individual aperture extending from the front surface to the rear surface of the headstock and the elongated bore extends perpendicularly to the aperture, wherein the method comprises the steps of inserting a steel flanged insert into the individual aperture; inserting a shaft, having a first end and a second end, in the elongated bore such that the first end of the shaft extends into the aperture of the headstock; coupling a first end of the at least one more string to the first end of the shaft and coupling a second end of the at least one more string to the termination section; and securing the shaft to the headstock. In a particular feature, the steel flanged insert prevents the at least one more string from direct contact with an edge of the aperture and facilitates an improved tone transfer to the headstock.