dunno man... i think 2 undercloked sp3x are better i mean, psu in miner and less noise... now it depends on the price of sp3x, underclock, price of electricity, etc....
One day at 5.49Th/s? On a single unit? How's that possible?
something weird happen i had a spike to 30TH out of no where
That's not a spike - that's a whole day, 24 hours. According to that screen shot, your 1.7Th miner was churning out 5.49Th for 24 hours - that's impossible.
he had someone point ~30th to his address! it was pointed for so much time that it gave the average per day at 5.49Th. is that hard???