Repairing a Botched Sharpening

[BPalv]

Nico,
That very thing happens to me now and again.  Tormek Purest's may cringe at this, but sometimes I find tip to heel will help keep from developing that divet by the heel.  I could be wrong, but I'm thinking that divet occurs from the direction you grind. As you start to move the blade across the stone, the area to the right of the left edge of the stone gets progressively less grinding time resulting in the extreme right side of the heel seeing the stone much less. laying the knife on the stone also may add to the issue. I'm pretty sure Wootz's covered this issue in one of his videos.
If this is incorrect perhaps someone else could chime in.

[Nico]

It's funny because I've sharpened dozens and dozens of blades on my T-8 before and this has never happened. Something strange about the Santoku blade profile. I will definitely have to pay more attention next time.