And it also crawls up the back of the leg, starting right after the short-row heel so there's no disruption of the pattern as there would be with a regular heel flap.
As I took these pictures I was feeling pretty darn smug about my knitting skills and loving that it was going much faster than I thought it would, even if I am knitting only one sock at a time instead of my regular two on two sets of dpns. And I was pretty confident about doing it from a chart, since that's not my preferred option. I was up to row 85 or so and sat down to finish the rest of the first sock. I looked at my pattern and thought, "Hmm, why is there just one k2tog in here with all these ssk?" I then realized that there were TWO kinds of single decreases (left leaning and right leaning) and TWO kinds of double decreases (left leaning and right leaning) in the chart. And that I'd only been using one of each. I'm calling it a design choice. And contemplating whether to reverse the lean on the other sock, since they're supposed to be mirror images. Oh, dear, I think I might need a wee nip and a lie down to contemplate that one.