Nothing is decided yet. It depends on its difficulty and coin price.
But AMD gpu seems to have low profitability compared to NVIDIA, because of its algorithm, equihash.

Using equihash algorithm, same as ZEC. NVIDIA mining rigs will be suitable for BTG mining.

Pool estimates hashrate by shares sent from rigs, it can be inaccurate.
It seems that it's showing about 5% difference, I think it's very good.

Yes it's using equihash algorithm.

I heard that some version on ccminer has a bug with lyra2re2 algo that sends less shares than calculated by its hashrates.
It was fixed on recent versions. Check for it.

Without using AWS promotions, it's never profitable.
GPU's such as tesla is not appropriate for mining considering its price.

Is your 1060 shows only 2mh/s?
If you are using win10, update it to the latest version. There are some hashrate issue with older versions.
Restarting problem has many causes such as too much overclock or PSU problem.
Also how about trying only claymore's miner without nicehash?
Upload log file texts, experts will help you.

My friends running 1080ti usually mine ZEC. It's good GPu for equihash algorithm.

Mining XMR with Ryzen 1700, but it's not profitable as before..

It depends on your GPU.
Mostly, just try XMR mining with your cpu.

Consider PSU or OC set problems. ZEC mining usually needs more power requirements.

GTX1060 or RX580 is one of the most cost efficient cards.
You could try 3 of GTX1060 8way or RX580 8way.

Eth converting to PoS will be selayed at least 1 years due to Byz HF. Until then I will mine one that is more profitable.

Try XMR, it is more profitable for relatively old cards.

Trying to mine both XMR and ETH simultaneously on same GPU?
Of course you can do it by running two different miner program, but gpu resources will be separated and you'll get only half of hashrates on each coin.

What is your GPU? You can mine bitcoin gold with same miner you used on mining ZEC, such as EWBF or claymore's ZEC miner.

I love something theoretical. Thanks!

Build a mining rig with 8 rx580 series. It's cost efficient for mining ETH.

Antivirus programs tend to regard programs that uses PC resources as virus, so miners are caught as virus.
It is considered safe which miner is used by many people or source is open, but you should download on its official link.

My setting is 70%. It depends on your mining environment.