I have a few colleagues who practice the Pomodoro technique, and while it never sounded particularly difficult, my colleagues also never explained it quite as succinctly as you have. Nor have they given it the perspective of effectiveness (i.e., distraction urges fading because your brain knows a break is coming) you have.
With this encouragement, and your link to KanbanFlow, I think it's finally time for me to put a productivity method to work for me. Thanks!