Hey guys, I am putting together a Jazz style bass and have reached a decision point. So I am hoping that I can call on the wisdom of the masters who frequent this forum. Does anyone know how much the mass of the headstock, including the weight of the tuners affects the tone of a bass? I have always felt that part of the sound of a Fender bass has a lot to do with the mass of those big Schaller tuners. I guess my idea has been supported by products like the "Fat Finger" and Washburn's newer basses with the brass inserts in the headstock. I realize that lighter keys will often reduce the amount of neck dive and improve balance. But, with all else being equal, is their a noticable trade-off in tone or sustain when using the lighter-weight keys? Any advice would be greatly appreciated.