The truth about caltracs

just a note ,watch this video of two runs 30 minute apart , first run hook then spin ,second run hook and go , what did i change for it to work ? same power ,same lane ,same cal trac setting and tyre pressure , its simple and works
[ame="http://www.youtube.com/watch?v=Xvq3ZObywQE"]AP6 Valiant is ANGREE - YouTube[/ame]