Jay - The only suggestion I would have is a BIC lighter. I've never tried the pump drill method and I'm no good at making fire with two sticks of wood. I've tried and I just don't seem to have the knack.
I would think the heavier the fly wheel the more centrifugal force would be generated and the more downward force would be required to turn the fly wheel. That's just my thoughts.
Your comment about the drill being used for metal makes you wonder if that might have been the original intent and the drill was later adapted for fire making.
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