Observations on 11/10 (LAX) and 11/12 (LAS)
At LAX Saturday, the GA sent two pax back to their numerical place in line when they were approximately 20 positions out of sequence.
At LAS this morning, there was a WN agent walking through the gate area before boarding began, explaining the new boarding procedure to pax. Everyone was seated and orderly while I was in the boarding area. There was 1 person in the A1-5, A6-10 and A11-15 group boarding positions. The gate agent called for A1 to A15 as the first boarding group after the preboards. After the one person boarded, the agent called for A16-30. I was in the A16-20 group and was the third person to board the plane.
I agree that except perhaps for high density business routes (SFO-LAX comes to mind), I don't expect to see 15 people in the A1-15 boarding section for a long time.