Which pools do you use for Zcoin?
Last 12hours on suprnova i'm getting 50% Efficiency, wondering what could happen if yesterday it was around 97%
i been using MPH, seems like they do not too bad, hit some blocks. i was using zpool, but their pools all of puttered out now, no more miners

Keep in mind if its just suprnova pool reporting 50% efficiency that's a known visual bug in the MpoS pool system, as long as your miner isn't showing that many rejects your smiling