Search:

Based upon your description, I think that razor is severely warped.
If that's true, you'll be honing a very long time on the Norton 4K, and by the time you manage to get the entire edge lying flat...

As always AusTexShaver makes good observations.

That razor has a warp, in the sense that the tip and the heel lie not in the same plane as the middle part of the blade. You figured it out quite...