[starscream]

The only reason I would even consider running 4S is to participate in a sanctioned race. I can only guess why 4S became a standard for 1/8th scale racing but the reasoning that if a 10th scale vehicle uses 2S then 1/8th scale vehicles should use 4S doesn't jive. This is because the needed power to propel an object increases exponentially when you introduce additional mass. So, a vehicle with twice as much mass should take more than twice the power to achieve the same speed as a vehice that is half the size. 1/8th scale racing should allow 6S-8S setups.