TL:DR the rest of the thread so it may have already been mentioned, but have you read Shiela Taormina's article about TI and drag vs. propulsion? http://www.slowtwitch.com/...nter/propulsion.html
You made a good point that when you are swimming faster, it's easier to maintain better body position, and reduce drag.
You made a good point that when you are swimming faster, it's easier to maintain better body position, and reduce drag.