It's not that we do not have any control. We control the hardware and the mining algorithm we use, the software we use to keep an eye on performance of various mining pools, and more. With our level of knowledge and experience in these matters we can assure you that is taken care off the best way possible. But mining difficulty and coin values are beyond our control. But to get any insight in those, you can use external sites that keep track of mining difficulty, hashrate growth, block rewards and coin values and such. They should be used before making any purchase so you have an idea of whats possible. And even after purchase there are times when changing payout to a different coin might be beneficial, though that requires some more understanding as it would mean keeping track of several coins and their exchange rates. But currently we have no Zcash hashrate available. We are working on that but it's hard to say when we will have hashrate available again.

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Your genesis Mining Team