just got a 14 without any overclockers 
this is my set up btw 
i wouldn’t change too many things at once, it seems you got a good handle of the combinations to make it as efficient as possible.
I may change things so Centrals would sum the production of the non unplugged Factories.
At the moment they count the grayed out ones, but they shouldn’t as they are not really producing.
i’ll leave you have fun with the exploit ! and ll prepare some surprises in the next days. I have some secret tiles in mind …
Thanks again for raising the bar
well, if you're going to make it so greyed out factories don't count for centrals then i might as well tell you that I've found a glitch using them.
you see how the factory's work is if they cant place a coin then it gets stored in itself so when it can it sends all the built up coins at once then because it goes in order of - normal - built up - normal when it works again. what i was doing it sending the first normal then stopping it again and the central thinks the next amount is the correct one so it starts producing the bigger number. (hope that makes sense.)
YES ! I was looking at this today too after I saw your screenshots where the factories were grayed out.
Under the hood, what was happening is that the gray factories were not producing but accumulating cycles, and then once connected they did spit all the $ accumulated. (which is kind of okay?)
In the new update this won't happen, but unfortunately your designs would need a tweak to work again. It makes me a bit sad because it was a smart approach and I do not like cutting "features" out.
I'll be adding some new to compensate !