Loping Freestyle Technique

Any old dogs out there trying new tricks? Any younger generation masters swimmers swimming this way? www.goswim.tv/.../freestyle---loper-drill.html "In watching the Olympics, we can't help but notice the impact that "lopers" are having in freestyle. While high-rate freestylers and straight-arm freestylers have been getting the most attention this year for the speeds they've achieved, lopers are certainly making a HUGE impact."