Triathlon, Swim Coaching - Catch up drill

Well we all want to improve our technique wether in the water, bike or run. I have found that YouTube has some very good short videos of various types of triathlon training videos. This one is swim - Catch up drill:
Catch-up: to isolate one arm, to practice a long stroke and a long body position.
Swum like regular freestyle, except one arm is stationary, always extended forward (front arm), pointing towards the destination, while the other arm performs the stroke (working arm).
When the working arm moves forward and "catches-up" with the stationary arm, they change places.

Train Smarter!