I've seen this one coming, gaining strength in the media lately. On the far right, Triathlon Magazine tells how the 2:3 technique is worth trying.
My opinion? Why work on this crazy technique when it's possible to swim as fast as this other guy just breathing on one side?
The answer is to SWIM. Time yourself doing techniques that click with you, see which is the fastest, and keep improving. When it takes a bunch of mad scientists to figure out which technique is the fastest, top olympians do a variety of them, and nobody can agree, then they are all pretty good. Get better at the one that works for you.