Just installed miniZ miner v1.3n+ from website
on my 1080s rig all works fine - CPU 33 %(+12% Sols compare to gminer)
on my 1060s rig not good - CPU 99 %
You'll have to give it up to 24 hours to know for sure. I had it fail between 1 and 12 hours. What CPUs are you running on your rigs?