<blockquote>... I remember when the Triple action agitator came out, but what was the third action it did?</blockquote>The auger is spring-loaded on the vertical axis. A heavy load will make it to "climb" upward via the spiral working against the clothes and press down with a small degree of force to help entice rollover.
The machines are currently located in Ohio. I'll be picking them up come December/January when I'm on Christmas break! I'm so excited! I remember looking at these brand new at the store and DROOLING like CRAZY over them!