I was mining ZEC for the past few weeks. With the boost to Cryptonight I decided to take a chance and download the Nicehash legacy miner and then point my 4x GTX 1070s at only mining that. The result varies but I am putting out 2760 H/s at around 390 watts from the wall for my entire system. That is the GPUs operating at about 35 TDP, although I have the limit set to 80% it never gets more that 35%. Not quite sure why that is but my hashrate seems to be okay. I am averaging around 6-9 USD per day at this point. I figure I will keep doing that until Bitcoin Gold figures itself out and then switch to that for a short time to see how that goes.
As I wrote in my previous post, yesterday I switched to NiceHash. That was my first time to use NiceHash and I installed newest version. Today, when I checked the RIG I was not satisfied. One GPU was completely out of work. RIG didnt recognize it anymore. I had to restart the system. I left everything by default. I only benchmark GPUs. I have a similar configuration like you 4x GTX 1070 and I have one question.
Did you uncheck some algorithms? In the Mining stats I can see that RIG tried to mine Lyra2Rev2, DaggerHashimoto, Decred, CryptoNight, Equihash and Blake2s. Unpaid balance for 12 hours is 3.46 USD.