At worst the knot will get a bit loose from time to time (like maybe once a year), and then it takes a few seconds to tighten it again.
I expect my shoes will fall apart (they're already pretty old) before this knot unties.
[1] - https://web.archive.org/web/20051203081429/http://web.ukonli...
I recently about a shoelace-practice book [1] for my 4yo daughter. This book shows a couple of ways to knot, and one of them, called "bunny ear bow" [2] is easier than the traditional "double-loop". I hope these knot-inventors pay more attention to the ease side so that kids can start knotting by themselves earlier. That could be thanked more than inventing a tricky-but-fast methods for adults.
[1] https://www.amazon.com/Your-Shoes-Cottage-Door-Press/dp/1680...
[2] https://www.news24.com/news24/southafrica/local/hillcrest-fe...
https://www.youtube.com/watch?v=OgYYeJpo2fk
They are also selling retrofit kits
TBH, its effectiveness depends on the friction of the actual lace material -- some of them are so smooth that it still requires loosely tying the loops across the resulting knot just to keep the pressure on it, but to me it still feels faster and smoother, and ultimately it makes me happy so I keep using it
Super easy to untie, as well, if needed.
Also on my Solovair boots, I used quick tight lacing [0], which gives you the outer "straight lacing" appearance but also allows you to make the boots very tight without spending 5 minutes to tie them. The main issue with this technique is that the laces can shift, but I marked the center of the laces with a Sharpie to serve as a guide.
Even the Ian's knot demo uses an empty shoe. Since I haven't learnt his tying technique, can anyone please say if it works under tension?
In exchange I'll give you a free tip on how to dry your shoes. Remove the insoles and wedge inside a ball of absorbent paper such as kitchen towel for 10 minutes. Remove and then insert a vacuum cleaner nozzle inside. Switch on the vacuum and leave it running for 20 minutes or until dry.
https://www.goodreads.com/quotes/782216-everything-is-intere...
It's almost exactly like the "standard" shoelace knot I've used most of my life, but with just an extra tuck, and it virtually never unintentionally gets untied. It's fast, easy to put on and easy to take off. Highly recommended.
[1] - http://www.fieggen.com/shoelace/turquoiseturtleknot.htm