My 7 1060s run very stable compared to Windows even though at a lower hashrate. 
Keep up the good work! Can't wait for OC ability to be available. 

Also, do anyone's nvidia cards run incredibly hot in this beta build of smOS? 
The fans aren't kicking in for me when they should for some reason. I tried setting default fan speeds in the OC options, but I'm assuming those are not functioning yet because it didn't do anything.