I've never cared for the HHT. There's too many variables. I like to use the thumb nail test. When you think it's shaving sharp. wet your thumb nail and place the edge on your nail, then slightly draw in back. The only pressure should be the weight of the blade. If its sharp, it should stick at once. If not, go back to the hones. If it sticks along the length, give it 20 more laps and call it done. :gl: