I never even come close to earning what the reward estimates show. i tried ethash and x11 and the results are always disappointing. currently, the pool status shows:

Current Estimate         0.04136
24 Hours Estimated     0.04316
24 Hours Actual          0.00721

for ethash algorithm. how come there's this 6x difference between the estimate and the actual? the estimate seems to be consistently wrong by a wide margin. minerstat suggests i should be getting ~15 USD daily for running my E9 Pro on Zergpool but I never come close. maybe it's time for an overhaul of the estimation procedure.