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.
Switching algos, On/Off miners reduce daily income considerably. But sometimes (like Cryptonight now) for different cards Nicehash is the best choise. You can use only stratum properties of Nicehash and your "own" miner without using NH software