Unfortunately that window only lasts about 2016 Blocks. As soon as the price rises the Diff will follow. If it's slow enough it'll buy us some more time with a lower Diff maybe 2 or 3 retarget periods, but last year is a good example of how fast Diff can rise if the price increases quickly. Only this time there won't be a bottleneck on hardware, there is an ample supply just waiting to be purchased or turned back on.

In the meantime I'll happily sit here partially heating the house with some 741's, collecting some lower Diff coins for a better tomorrow.

Would have been nice to snag one last block before we lost a bunch of Hashpower but I'm looking forward to their 5ND running out.

It has a lot to do about luck, especially with these pices, especially when profit is low already.

The 5N ramp really sucks and has no value at all, as the block finds are so long from eachother, the hasrate on the way down is as good as worthless when eventually a block is found...
I switched to another pool to try my luck there, and luckily i did the right thing...

No FUD to Kano or anything, but at the moment it is a Bad luck pool....
When numbers turn green again, i might join, but for now i'm making (way) more profit elsewhere...

Sorry, i'm in it for the results, nut just fun only...

it is around 1 th/s if I recall from some of the earlier posts where users are around that point and are stating they are above dust level.

Also chuckled when you said "a warehouse with a roof big enough".   Basic solar math, presuming you want to run on 13.5TH S9, with a real world consumption of around 1450 watts:

* (1) typical panel, lets say a 130W one, will produce about 4 hours of power a day at 80% of its rated rate (since the rated rate is optimal during noon soon in the tropics):  130*0.8*4=416 watts per panel per day
* Each miner therefore requires about 3.5 panels
* 1 megawatts of power = (690) 1450W miners = 2,145 panels at about a square meter each, so call it 21,450 square feet of roof space over a data center that doesn't need to be over 2000 square feet in size, likely larger.

But wait...  Nobody is going it invest that type of money to run miners for 4 hours a day, so lets add batteries and enough panels to run for a full 24 hours:  80% efficient charging batteries = 2145*6/0.8 = 16,100 panels.  So about $2M in panels.  Batteries to carry say, 3 days of clouds, will match that cost.  So now your at $4M.  Oh, but wait again... we only have enough panels to keep ourself running for 24 hours and now, after a cloudy day or three, we need to run AND charge those batteries.  Better double the array size (now $4M and 32,200 panels).  Plus battery chargers, inverters, etc.  Add at least another $2M.  

So, we have $6M in solar infrustructure to run 690 miner at something like $1300 each current pricing (sorry, Bitmain doesn't have 13.5's listed right now, which this math is based on); eg. ~$900K in miners.
At $0.10/kwh, and 1MW of required current, each hour cost $100.  So in about 7 years you will break even.  Except that your batteries will likely have been replaced once in that timeframe and likely be coming due for a second round, at $2M  a pop.  Good news, electronics are likely good for 10-15 years.

Oh, and since we now have 32,200 panels in our little setup, your going to need about 320,000 square feet of south facing roof.  That just a bit over 7 acres ON THE SOUTH SIDE.  So a 640,000 square foot warehouse of which you will be using around 2000 square feet.  Or perhaps you could find a 6000 square foot building and provide about 1% of your power for a mere $60,000 - but why bother.

Granted, you could grid tie, and eliminate the batteries and half the electronics, but then you need to deal with paying retail power rates and likely being credited wholesale power rates.   Not aware of many NEW grid tied solar contracts that allow for reversible meters like they use too.  They electric companies have wised up and paid off the right politicians to protect their turf.

Looking for a good deal on Hashing contracts.
I got ripped off by https://www.cryptomining247.com/ last year.
They payed out for a couple months then zip zero zilch!
I like the idea of renting hash power over time and I don't have several thousand dollars to invest in machines right now so...
Anyone know a reputable site?
Thanks in advance!

Speaking of eBay, the sold Avalon6 prices are approaching an average of $300 each!

Due to the age of those miners, recent difficulty increases, new miners coming out, and eBay risks, is it worth it to consider these anymore, or should I just wait until I have enough for a 741?

cant say as i understand why u shutting em all down to begin with ? solar power is infinite once u have it installed and as i understand it deterioration of solar panels is a function of time more then use.if they generate to much heat make yer self cooler boxes to muffle sound and do a great job of controlling heat (one of these https://www.youtube.com/watch?v=HhNS2ElN5Mk)

Good luck helping them mine empty blocks

slush's last empty block was a week ago:
https://btc.com/0000000000000000000d637d922588b7d30c85fd35d87b42ef86a8ce9609764e

When luck is good, then PPLNS system is great to be on.   When luck is bad, then PPS is better.

Luck can change at a moments notice.    

I personally am not worried about luck.  My concern is what if something is broken and we can't find a block?   Computers and systems break all the time.

Another thing always bothered me as well.   Every time someone else finds a block, we have to restart our search.   Perhaps all the restarting is causing an issue?  

Again, forgive my ignorance.  

It seems that every market is in a correction right now. The Dow shaved off 665 points. Worst day in Wall Street in two years. I checked my Apple stock and it is down to 160... lol  Everyone relax. The markets will finish the correction and we will be back on a steady clime once more. It just takes time.