Oh just to add, the usefullness of 'having' to add lead is how you can adapt it to the conditions. At the oOple race it rained for leg 3, I took out the lead from under the servo and added the saddles 2*18g worth of weight at the back, to shift the balance backwards. This gave me a lot more drive in the wet and the car was really good (3rd in last leg of the A). Takes about 2 minutes to change this weight balance so can be done right before a run if it starts raining
