Dont know really, but im getting a steady payout at 0.013 a day with running from 700-1100kh/s  when i use the computer, i disable the weak graphic card.

And the 3% middlecoin is taking + we have to pay the exchange fee of 0.4% is just pure greed, thats also a big factor i left the pool

Doubt h20 has any connections to selling altcoins while exchanges are down, and they rarely are.