Dual mining maybe gone soon as GPUs cant compete with ASICs, you have have noticed rewards and payouts and difficulty and spike lately, Devs of claymore may need to reduce their fees. to help in a few months.
ETH asic also announced, release in coming weeks.
Do you even know the basics of ethash algorithm? it is so memory-intensive that it would be too hard to design an ASIC with that much memory, let alone a compact size (like the S9).This fact makes eth ASIC-proof.
Try again next time.
it only takes 4gb to mine... PoS is coming late 2018 its coming, start selling ur rigs.
Why? Just switch to another coin...plenty of them out threre.