my m6 starts in the blue, after a couple miles climb to midpoint betwween blue and 12 o'clock and sit there, in trafic jam it climbs to 12 o'clock and sit there then go back to midpoint once traffic clears. My 635 starts in the blue and take quite while to get out of it and sits lower than the midpoint, in traffic it goes to the midpoint then go back to th lo-midpoint..