Well I ran the farm for 12Hrs but had to switch back to claymore as my effective hash was dropping, Need to fine tune more for 470 cards.
Not saying it's not GG, but effective hash rate in subject to variance, just like everything else. It's not a flat line, if that's what you're looking for.
I understand but I should have been seeing 2.2-3.4GH/s fluctuation however I was only seeing 1.6-2.5GH/s with my full farm. Testing on a single 470 GG was faster but it was slower on my full farm. I am looking into optimizations for my 4 Card rigs now to see if it's just a config issue I was just trying to let zawawa know why I had to pull the farm from the fee version of GG for now.