Hei,
I read the article with great interest and applied it to our clubs main outing this summer in the Finnish archipelago.
We were a group of 9 paddlers and the feedback I got from the participants was positive, some start even say "the clock is at top now, where is our break". It took bit more time to make these breaks but I believe it was compensated by being able to paddle bit faster, when focusing on it, instead of thinking when I am albe to drink/pee.
Will use it on my coming trips as well.
BR. Simo