Ok I understand your logic, but I was thinking to ask for his recipe as a verification method.

Anyway, I asked him for an easy proof earlier and he should have talked to me 3hours ago... I guess no deal is going to happen here.

Would you or others recommend any specific (used?) model or brand with high hashing rate, given that electricity doesn't take into consideration?

as i replied in a private message to another member , i have also 2 units damaged and that have been refunded by Bitmaintech . the guy who contacted me has buyed a unit with a board defect .
i have 2 boards in stock as i have 2 units who have 1 board out of work .

check on my sellin thraed and also see that i'm offering s5's at 325 cause need to recover money and electricity costs are too much here in my zone ...