Yes spawn? Here in Sabah we would vote out ourselves into what race number we will start. eg. 20 racers divided into 4 races with 5 racers each. you pull out a number from a box, if u got no. 2, then u are racing on the no.2 race with 4 other racers.
we would get to race twice in each 5 minutes race and the count would be on how many laps u can do in that 5 mins. Champion obviously selected to those whom with the highest laps with the shortest time. We usually race modified. Batteries used usually Sanyo NiCD 2400, Sanyo HV 3000. With four packs should be enough. 2 packs for practice rounds.
A-main & B-main divided by the total racers participated divided by 2 (half). eg, 20 racers. 1st top 10 racers would be in A-main and the rest fall into B-main.
Please visit RC in Sabah Thread.