Dom,
When my gets bad twitchy at the begining of a run I have found that if I scrub the tires on the track it helps a lot. Just wipe your tires normally in the pits then when you put the car on the track srub the fronts in the groove on the track, it has helped me in the past lately I have not been doing it because I'm lacking the steering I want. BTW you are going to have to watchout for Tom at regionals, he was turning the fast laps but was making errors, give him some more time he will be a threat.
Chad