Really appreciate all the great tips. Never did the crawl since I only have one other place to move the sub.... the other side of the TV in a corner. But I'll certainly give it a try at this point. Stay tuned....

If it helps, my room is approx 13-14 feet deep, 9 feet tall and bordered by a wall to the right of the TV w/ nothing to the left for about 20 ft(upstairs room that overlooks first floor). Only thing in the room is a small wicker chest in the center and the couch on the back wall.