Hey ocminer, may I suggest don't close your zcoin pool just yet, if you switch the payment to PPLNS system and see what's what for another month, maybe more miners will come and the hashrate getting bigger? I'm not a big fan to mine on MPH for the hashrate seems very very low then my hashrate on my miner side. I hope other miners will support you to spread and decentralize zcoin network hashrate