power outage during the night perhaps?

I like this Dwarfpool. it's very fair here . I always use this pool.

flypool is PPLNS payment format -- so you need to be in flypool for period of time to get maximum hash/reward.

is Dwarfpool PPS or PPLNS?

if Dwarfpool is PPLNS like flypool, then to compare fairly you need to be mining at Dwarf longer than a night...

What do you expect, it just launched and doesn't have enough hashpower and took 12 hours to find 1 block.So variance is huge. Wait until it gets bigger and mine then.

Any miners using claymore v8 on an Sapphire rX-470 - Nitro edition - 8Gb Oc that are undervolting to get the best possible hash per watt ratio?
If so, would you mind telling me you stats (at the wall please, no hwinfo/gpuz figures).

how i can make at the wall ?
hwinfo and gpuz give me 70W.

i use :
https://anorak.tech/t/anoraks-vbios-collection-optimized-settings-for-performance-power-saving/13/3

this rom with powersave :
https://anorak.tech/uploads/default/original/1X/ba97e4fa5363c3fbd9373b5f3480ce4d27a2fac1.rom
on Trixxx i make :
GPU Clock : 1126 (default value)
Memory Clock : 2000 (default value)
Power Limit : -5%
GPU Voltage : -100mV

With a wattmeter (kill-a-watt or other model)

On vardiff port difficulty grow and grow and grow...

And stops to grow when it's satisfying.
When you choose a static diff port you can have problems : too low difficulty and you will overload the pool with tons of shares (and waste bandwidth), too high difficulty and you will send too few shares due to the short duration of block (and loose a lot of hashrate because you work will be dropped before you submit a solution due to block change)

Every share sent is weighted by the pool with the difficulty of the share. Sending a lot of low difficulty shares won't earn you anything more than sending 4 times less shares with 4 times more difficulty

That's a wise choice. You're welcome.

And with mining software getting higher and higher hashrate, it's safer. Static diff ports are often a trap. What may work well with claymore v4 may not work that well with v8 (hashrate doubled).

You may consider fixed diff ports when the miner is "mature" (no 20% increase in each release )