A graphite or silicate plug is coated with a refractory metal and positioned in the cutter pocket of a steel bodied bit as molten hardfacing material is applied to the bit surface under high temperature conditions. In the examples, a file information database is accessed to obtain information regarding the expected file name or expected location of the customer notification file. Further, by reducing the overall coolant flow volume, the hoses andor galleries required for the directed flows are reduced from those of conventional cooling systems, providing a cost savings and a weight savings. The leading edge air deflector is at least partially intersected by the inner spar. In one embodiment the peripheral circuits are formed in a silicon substrate and an N level array is fabricated above the substrate.