One suggestion is to start on the low side when starting out (smaller pinion than others are running). This allows the motor to run cooler, have more rip out of the corners, and a touch less top speed. If you overgear it from the start (too big of a pinion), you could fry the motor or ESC since you probably don't know what is safe for the motor/ESC. Heat is the enemy for ESCs and motors.
*** The Gate - Celebrating 7 years at the same location ***
The difference between genius and stupidity is that genius has its limits. - Albert Einstein
Understeer is when you hit the wall with the front of the car and oversteer is when you hit the wall with the rear of the car