I have the electric sharpener and love it. You need to put a tiny drop of oil on each of the two stones before sharpening. After sharpening, put another drop of oil on each stone and rub it with a fingertip to get all the metal off the stone and wipe it off with a scrap of cotton or tissue. You need to do this with each sharpening pass, because a metal-clogged stone won't sharpen your blade.