back to the traction control. some people like it better to start without it as a little slip is not bad at all. the ASC regulates the amount of gaz and the brakes to prevent the skidding. result of that is, that when one tire starts spinning the engine gets cut down and you loose punch. for dry pavement accel it is better to switch it off. for turns and wet, it is way better to have it on. it helps not to spin out.