Ok, so a little update...
GTX 1070 actually goes to 310. GTX 1060 6G does about 220. GTX 1060 3G is above 200. All these speeds are reached with maybe 1-2% more power usage compared to latest EQM available.
I also tested GTX 980 Ti, it did 350 overclocked, but that was with a bit older code, that wasn't properly tuned for that card.
We will try some more tricks tomorrow and hopefully push stock 1070 to 320 Sol/s. Also need to find proper setups for older cards such as 970 and 750 Ti.