I'd switch the R9 380x over to ZEC - they should be more profitable there as they're not real good ETH miners.

For ZEC and it's offshoots, sol/s IS for all practical purposed the same as hash/s - completed "units of work / sec".


 For most AMD RX series cards, ETH is generally the same to a little more profitable than ZEC.
 Older AMD cards vary.
 For NVidia cards, the 1070 and 1060 are the only ones even worth considering mining ETH with but are almost always more profitable on ZEC or some of the small-cap "skein" "groetsl" "lbry" and such coins.


 For mining, 9 cents/kwh is NOT cheap. There are way too many major farms that pay 3c/kwh or less and even some of us SMALL miners in the right areas can get to 3 or a hair under.