I may guess that a few thousands of Sfards machines are online.
well say 2000 of them so 2000 x 1.7 = 3.4ph or just under 1%
my guess is bitmaintech swapped a shit ton of s-7's for s-5's
2000 s-7's in = 9.5 ph take 4000 s-5's out = 4.6ph net gain is 4.9 ph
2x that
4000 s-7's in = 19ph take 8000 s-5's out = 9.2 ph net gain is 9.8 ph
So say 3.4 ph in sfards
say 9.8 ph in s-7s'
some bit fury
some knc
and 20ph is added on for +5%
I think we get this 3 times in a row and then go flat.
You may be right about Bitmaintech.
Last year when I've first bought a scrypt miner from Zeusminer there were many Chinese entrepreneurs who made custom orders. They were the first who received the products, and they've bought a lot of products.
If the situation is the same with Bitmaintech, if they are assembling S7 right now the first clients will be from China. S7 is the best product in power consumption so I assume there are thousands of Chinese orders.
The increased hash rate wont be found in Bitmaintech pool, it will be on the other Chinese pools.