We don't have control over the returns as those largely depend on mining difficulty and market conditions. Those conditions are variable, as is the nature of cryptocurrencies, and any investment in these contain possibilities as well as inevitable risk. That risk can be calculated to some extend through various independent websites that offer calculators which help making estimates for mining returns, such as http://www.coinwarz.com, where you can check mining returns for any amount of hashrate at any level of mining difficulty, you can check difficulty growth charts to help make more accurate predictions of the future.

Of course for Zcash launch the risk was a bit greater since nobody knew what was going to happen, how much total hashrate would be mining, how high or how low mining difficulty would be, how large mining returns were going to be, or even if there was going to be decent mining software to begin with. Those that bought our services took a chance on all that, except for the mining part, as we promised our customers would be mining or get a refund if all failed. We lived up to our promise and managed to deliver the promised hashrate, and our customers were among the ones mining right from the start. Since then we have managed to implement several upgrades on the hashrate also and we keep looking for further improvements. Daily returns still depend mostly on conditions that are beyond our control, but no matter how high or how low those returns, we will deliver the mining service our customers bought.

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Your Genesis Mining Team