I thought the three sixes was a reference to Heccubus, or to the thread dedicated to someone's 666th post (Heccubus's, I think).
This thing is enigmatic.
"I had a lot of different ideas. At one point, Luke, Leia and Ben were all going to be little people, and we did screen tests to see if we could do that." -George Lucas, in STAR WARS: the Annotated Screenplays (p197).