Thanks Larry!, For accuracy there's no substitute for a marking knife, Not only is the line it leaves ten, maybe a hundred times thinner than a pencil line but it also establishes the first cut, the reference for all the others. As a corollary, there's no substitute for a gauge for cuts parallel to a reference surface or edge. Taylor Tools makes a sweet marking gauge kit for $15, the extension rod, cutting wheels, brass set knob and threaded insert. You do need an 8 mm drill bit and a drill press helps, though I didn't have or use one;)