I adjusted the thickness of the Sinister's fingerboard using a belt sander. The nut I also sanded into shape, using a small belt sander given me by my friend Andris. To hollow out the underside of the fingerboard I used a Lee Valley Veritas Detail Palm Plane. To tack on the fingerboard I used two very small spots of weak hide glue. I will still need to do final matching adjustments on both the fingerboard edges and a bit of the neck to ensure a clean transition.