that is what you are doing..Heat cycling the tire only when using a hot box...it doesn't work the sidewalls...it only adds heat and distorts the rubber....which in turn cures it out...rubber reacts faster on the track after it has been heat cycled in a hot box...tire warmers are just what they are...they warm the tires up to get them to come in quicker on the track...use them trackside and use hot box to heat cycle tires...