Sounds like a good experiment. Let us know how it works out.

BUT

I think you're obligated to share your dad's secret with us, now that you've mentioned it.

Are you using the mousepad technique? (Something a little flexible -- like a mousepad -- behind various grades of emery cloth.)

If so, at what angle do you draw the blade along? Or how high up do you raise the spine? And how much pressure do you use?

Bear