In this article, Petter suggested the right thing to do after the final stage of every leg is to have "a hat with pieces of paper with numbers. Each driver will step ahead and take one. Those numbers are the running order of the next day. If you take, for example, number 3, you'll be third on the road and so on". It's more like a gamble. Fair enough, equal luck to everybody. Sometime it will be good for the front runners, sometime it wont.
Link:
http://www.ultimavuelta.com.ar/notic...onales&id=4952