Nvidia 10 series cards are not as good as AMD RX 4XX/5XX cards for dual mining. I would get a couple of RX 4XX/5XX 4 GB cards instead if you want to dual mine ETH. They have a better hash rate for ETH than a 1060 as well. You can see which coin is more profitable to dual mine with the whattomine calculators.

https://whattomine.com/merged_coins/1-eth-dcr