Thanks for that info on the 750.
Hmm.. the last price update was around 5AM central. I'm assuming Bitmain updates around same time every day? I can go back and look I guess

Think I'm going to dump some CEX FHM contracts a get a another one for about nothing. That's one way to do it.
2x S1 units will run just fine on a Corsair 750w PSU

Thanks for all the input!