I'm still getting the best results with this miner with my 1070 Ti's. My pool reports an average of 6.23 ksol/s for my 12x 1070 Ti's, so that's about 519 Sol/s per card @66% Power Limit and 4,37 Sol/W. The miner reports 510 - 525 Sol/s, so that's just about right. Although the hashrate varies a bit, the average is always above 6ksol/s, which is 500 sol/s per card, which would be the minimum 510 sol/s -2% devfee. Also I have zero stability issues. Running my cards at +200 core / +600 memory.