On the Dragon, I prefer a very neutral setup. If you lose it on an autox course, your usually fine. Lose it on the dragon, well you might get lucky like me, but you might not and hurt your car. You definitely want to run more than stock. How much and what pressure difference front/rear, I don't know.
You'll probably end up wanting to change the pressure from whatever you initially start with after you see how's it working out for you.