Personally I would never do a second burnout. It would take a very long "break" to get me to warm the tires again, they simply don't cool that fast. I have had a number of instances where I was shut down after a burnout for a number of reasons. Don't think I have ever done a second burnout after being shut off. Simply not needed unless it for an extended period of time. It is your car and you always make the call on whether or not to do a second burn out, the track cannot force you to do it. Just my