If things are stabilised I'll bring back a few S9's here ... diff set too high for the S9 just increases variance and reduces chances of finding blocks.
Mine seem to be happy at d=10000, will move a couple back here later and see how it goes.
Agreed - 1M was just way too high - it would seem especially for alts. Obviously the pool operators know better than I do but my machines (and rentals) are way happier since they reverted back. My S9's are still at 262K which is pretty high. They were really cruising for a few weeks at 30K. I get that for straight BTC mining high diff makes sense. Just glad things are stable now. I am getting about 60 blocks a day on the S9's, about the same as the L3's.