and what about pricing?
will the 10 chip board coast like the 20 chip board?
if so, it will be very expensive.
read OP, it says 80
I read it, but the question remains, because the same 20 chip PCB will be used for 10 chip version.
The price is completely reasonable and if you think otherwise you are free to go look for alternatives.
Somehow i think that 2.5 GH/s for less than 3 Btc is still quite a good deal.
Of course you are free to look for better deals elsewhere.