One can play a level 2 count with a ramp that yields the same EV as a level 1 count. If that is done the ROR will be much lower. Or one could adjust the ramp such that the two counts are equal in ROR, in which case the level 2 count's EV will be higher. Or a middle of the road approach will result in both lower risk and greater EV. However, no betting ramp can simultaneously maximize risk and EV. Neither will side counts, learning every possible index, prayer, not even human sacrifice can maximize both.