Perhaps you just are not technically competent to run 12 of something as simple as the S3

(I couldn't resist)... Seriously both pieces of hardware are solid and arguing this aspect of the conversation is silly..
I have many S3's scattered around and have been hashing for a while now. Bought from stock and got them a week later. If you set them up properly they will run like tanks. The best thing a miner can do is hash, which means he is running dirt and getting gold. If you are waiting on hardware and have already spent money weeks ago then you are losing money. Plain and simple. If you aren't dumping dirt into the hopper, (hashing), you aren't making any money. Unfortunately after finally reading through all the BS in this thread I don't like the terms on Spon's new SP31. They guarantee 5.5TH/s but in a form of compensation which would be AFTER you receive the hardware. In my opinion, that's just a little odd. Slap on a no refund and you're stuck if not happy with the results.
It is really hard to catch up on this thread.