Paper here if you care.
20 minutes later, I had pulled apart their schematic and found bugs in their final proposed circuit. There was something amiss.
30 minutes later, I had redone the circuit so that it actually worked within the constraints of their system. I wonder if I should let the authors know of their bug?
Hit or miss: I already know Seth doesn't like QCA, as its the competing architecture with his stuff. And its very different. And yet I chose to present this, though I'll be ripped to shreds. Maybe that was why I was happy to find a bug? And now I notice this was published in the Non-Silicon Computing workshop he was responsible for...