I had some problem with "Share above target " - Nicehash pool.
I have problem with stability too. Rig - 6 xdifferent type of 1070 cards, differnet OC. Maybe is problem OC, but I can not find good solution for rig yet.
With EWBF I have not problem at all. So I switched to ZM only for short time.
If I compare second rig /ZM and EWBF/ with my 1080ti cards - there is not difference for me.
Thanks for good job.
017-11-26 12:42:48|# GPU0 connected to: equihash.eu.nicehash.com:3357
2017-11-26 12:45:52|# GPU1 rejected share: [1,"Share above target.",null]
2017-11-26 12:45:52|# GPU3 server set difficulty to: 000f0f0f0f00000000000000...
2017-11-26 12:45:54|# GPU4 server set difficulty to: 000f0f0f0f00000000000000...
2017-11-26 12:45:58|> GPU0 71C Sol/s: 459.3 Sol/W: 3.65 Avg: 467.6 I/s: 249.4 Sh: 1.66 1.00 63 +
2017-11-26 12:45:59| GPU1 70C Sol/s: 497.2 Sol/W: 2.99 Avg: 495.2 I/s: 264.7 Sh: 2.66 0.88 63 ++
2017-11-26 12:46:00|# GPU3 rejected share: [1,"Share above target.",null]
2017-11-26 12:46:00|# GPU1 rejected share: [1,"Share above target.",null]
2017-11-26 12:46:01|> GPU2 67C Sol/s: 493.5 Sol/W: 3.01 Avg: 496.1 I/s: 265.1 Sh: 3.33 1.00 51
2017-11-26 12:46:03| GPU3 73C Sol/s: 505.1 Sol/W: 3.01 Avg: 495.3 I/s: 264.0 Sh: 2.33 0.86 47 +++
2017-11-26 12:46:05|> GPU4 66C Sol/s: 475.4 Sol/W: 3.70 Avg: 474.3 I/s: 251.8 Sh: 2.65 1.00 47 ++
2017-11-26 12:46:07| GPU5 64C Sol/s: 467.6 Sol/W: 3.09 Avg: 466.8 I/s: 249.6 Sh: 4.32 1.00 54
2017-11-26 12:46:07| ========== Sol/s: 2898.0 Sol/W: 3.24 Avg: 2895.4 I/s: 1544.6 Sh: 16.94 0.94 54
2017-11-26 12:46:15|# GPU1 rejected share: [1,"Share above target.",null]
2017-11-26 12:46:16|# GPU1 rejected share: [1,"Share above target.",null]
2017-11-26 12:46:16|# GPU3 rejected share: [1,"Share above target.",null]