[cema]

This is the double slip knot, I think. I have recently started using it (the standard knot is going loose too fast the way I wear my shoes) and will never go back to the standard knot. Just so good.

[Bognar]

Yep, sure is. He addresses that on the knot's Technical Info page: http://www.fieggen.com/shoelace/secureknottech.htm