Wanted to mention that my Hyperdrive was very fast this past week at the Nats. Unfortunately I wasn't able to do better than the D main because of my inconsistency, but the car was very fast and easy to drive. I layed the servo flat, and changed the shock oil, other than that I didn't touch the car from Snowbirds. In fact, it still had the motor, battery and tires from the main at Snowbirds!! LOL I sure wish I could run carpet more often...