A. As a general guideline, if you have experience racing on drag radial tires, we recommend that you not change your burn-out procedure. However, for the very first run, we recommend a burn-out that is slightly longer than normal. Generally, on a cold track in colder ambient temperatures, we recommend a longer burnout, and conversely, a shorter burn-out under warmer conditions. Beware that long burnouts may overheat the compound and shorten the usage life of the tire.