I was out on a mine site today, and had to get some gouging done, and had a brain-wave... For those that don't know, Gouging is the electric welder version of oxy cutting, using hollow carbon rods instead of steel rods. (It is also extremely loud!) Would a setup like the old arc-lamps (self adjusting spark-gap with sacrificial electrodes) using these rods be of too high a resistance for coil use? Regards, MichaelT