We definitely could have. That said, to make it a "fair fight", where the cluster was trying as hard as possible to survive, we would have had to mess around with the amount of data stored on it. The current implementation works with a fixed amount of data, but we toyed with idea of starting with some large amount, which means nodes would take longer to replicate, and then decreasing it as we went, until roaches spawned so fast they overwhelmed you (but ultimately didn't implement it because of time constraints)