Please remember to do the following

sudo hotfix 1.3.1-newminers

Then sudo update-miners

It will update all miners to the latest version include those that not originally in the system.

It may be or may be not. Some many coins on Equihash and don't seems to be forking anytime soon.

Update to the latest miner
it should be ccminer 2.2.5-ethos5

check miner version -
cat /var/run/ethos/miner.versions

local.conf file.

globalminer ccminer
proxywallet xxxxxxxx
proxypool1 pool.threeeyed.info:3333
flags -a x16r -i 19
stratumproxy enabled

Depending on the type of card you have. You can mine the coins which suits your cards the best. This way is a bet on the future for the coins to rises. Choose wisely which coins that has potential to go up. I divided my cards into 2 parts, one is to mine low difficulty coins and another half to mine on Nicehash to get BTC directly as a backup.

Wait for the coins to drop in price and buy the coins directly. It nets more coins than mining.

Current coins price will not get you 10 months ROI. It takes more than that to make ROI unless the price of the coins pumped up again.

My suggestion is to keep the 6k. Wait till ETH drop below $300 and then get a chance to buy those ETH at lower price and keep it. It will get you more ETH than purchase the 6k equipment and continue mining 24/7 for a year.

Another possibility is the ETH will get pumped again to 2k while BTC remains at it is or hit around 10 to 15k by the end of this year.

Actually GPU prices only went up at the end of Dec 2017 and before that, GPUs can be purchased at MSRP or discount prices. Those who buys with these prices already ROI and those who started mining since 2016 is making a lot of profits. The down trend will continue and it will cause massive sales of GPU for those who bought at current prices as it is not sustainable.

1070ti is more versatile miner compared to 1080. 1080is good at equihash type of algo but not dagger hashimoto which relies on memory.

Mining profitability drops in tandem with coin prices. Overall the market is dropping. Only way to get through this is to keep the coins mined or exchange to BTC and keep BTC. This may be a better way to survive through current market conditions as alt coins drop faster than BTC.

That’s right. Mining is a hobby and side effect is it can be profitable to when done at the right time frame.

I set my 180ti to be 80% power and consume not more than 180W at any algo. I can then connect 5 of them onto 1300W EVGA Gold power supply.

1080 good for mining Equihash algorithm either ZEC, ZCL, ZEN, HUSH or BTG

That's my regret as well for selling those ether mined. Now mostly mine to keep either BTC or other smaller coins. Else, change them to Ether and keep it.

Configure the miners and wallet address from the group. Assign your rig into the group. Then reload the miner program.

Difficulty growth is part of the design of Ethereum when the leads to POS so less wastage of electricity and others comes in mind. So embrace it and if mining Ethereum is still profitable, you can continue to do. Else, switch to other coins.

Is this issue resolved with the 1.30 update? Can we use sgminer-gm 5.5.5-a to mine cryptonight on Nicehash?

Similarly any old hardware will be replaced with new hardware. Older GPUs will be replaced with more efficient GPUs like previous gen 480/580 replaces the R390/390X. The cycle repeats and mining continues. More coins to be mined and more people are getting into mining. Keep mining with GPU and mining goes on.

Many more small and more profitable coins using cryptonight protocol and many more coming. Mine those coins and exchange to any major coins like ETH and others.