On a different tilt to the red flag situation, at spa in 1997 the race was red flagged on the first lap I'm sure most of us can remember that. so my question is how many laps have to pass before the race is deemed to be viable in other words if a race was red flagged after two laps would it be restarted as a new race from the grid as in spa 1997 or would it be restarted behind the safety car, in other words when does the change happen is it after 2, 3, 4, 5 laps or less than that?