Its all luck really...
The cool thing is that it lasts longer than a coating would. Because your not adding anything. Your taking it away. Plus you get some differing hues in there. Fading from very dark red at the cutting edge to black.
Don't think of it as scale, think of it as discoloration. Though scale is the correct term. Our blades never experience actual scaling.
Carpe Diem
MS
Post Script:
The lower WB is about three years old. Note the changes in the guard length. You can also tell its been sharpened A LOT. Look how much thinner the profile is. It also looks like its been re-tied. Not because of the cord thickness. We have used thick and thin cord, but the knotting at the pummel looks odd. We also changed the false edge. And added adhesion lines to the spine.
[This message has been edited by Mick Strider (edited 10-02-2000).]