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.