I just got my Outlaw during the last sale (March, 2012), and originally I had it between 3-5 and that was too high, as the AVR had to over compensate and really lower it down to -5.0db. After reading this thread and getting recommendations, I lowered it back down to 1 and the sweet spot everyone says should be between -3.0db and +3.0db. It came in at -1.5db. Perfect. I'll post a pic of where my sub is in my living room.
EDIT: Here's the pic of my sub and location in my living room: Post 2804