Unused?
I'm very curious in how your SP31 has never been used. That's thousands of dollars of lost revenue.
Seriously, why didn't you switch it on!?
This is a painful story, mate.
We had to buy miners with my so called partner for about 150Ths power. I payed myself for these miners to test and decide which one is better. Our choice was SP31. I negotiated with Darren Zavilowitz the International Sales Director of Spondoolies-tech for big quantity discount and I got it. If you want to ask him I can give his email.
We found a premises for rent in a plant area with cheaper electricity cost, a service man and so on. Then in short, my partner said, that he didn't get money (according to his story, his brother from USA might send money) and that's it.
It was senselessly for me to mine with 11THs, because rent of premises and pay for service man would cost more than mining earnings. I never supposed to mine in my appartament, because of noise at least.
I am sure, 90% of forum members do not believe, that my miners are unused. And everybody will make sure, if someone buys these miners and writes here that they are unused in fact. Only that will be my proof for you.