I was just wondering... how well would chambering work on a headstock, neck and fingerboard? For example... on a headstock, mark out the tuning post holes, then route cavities around them and inside the outline of the headstock, then laminate a headstock facing. On a neck, construct the neck out of laminates (like a 5-piece neck). For the inner laminates, drill holes through the laminate parallel to the frets prior to gluing. On a fingerboard, once the fingerboard has been slotted, route out cavities between the fret positions (on the other side of course). I'm just wondering how well any of these would work for weight reduction... would they significantly compromise the structural integrity of the headstock / fingerboard, or have any tonal effects?