Went to the shoes to test: Ian Knot is faster and the cord is “relaxed” (less internal stress to contribute towards loosening) rather than twisted.
I’ll try words to describe the Ian Knot: Cross the laces, tuck one under the other, and pull; let go, then pick up a “bunny ear” loop in each hand, one on either side of the pre-knot; with your middle finger, push the out-side of each “ear” through the opposite loop; with thumb and middle finger of each hand, grab the loops simultaneously as they come through; pull tight. Looks like a double knot (two loops, each around the neck of the other) with each free end fed back through, forming the loops and ensuring easy undoing.
I’ll try words to describe the Ian Knot: Cross the laces, tuck one under the other, and pull; let go, then pick up a “bunny ear” loop in each hand, one on either side of the pre-knot; with your middle finger, push the out-side of each “ear” through the opposite loop; with thumb and middle finger of each hand, grab the loops simultaneously as they come through; pull tight. Looks like a double knot (two loops, each around the neck of the other) with each free end fed back through, forming the loops and ensuring easy undoing.