Nooo idea, Ive poked around with it a bit, and there seems to be allot of totally stagnent combinations that dosn't really generate allot of variety.
So far the best I have put together through trial and error is:
Then a 5 for the first set and 10, for the seccond. = 27 nodes.
Seems to add enough variety for evolution to take place without being totally unstable.
Swap the 10 and the 5 and get total stagnation and not allot of movment,
Make it a 10 and a 10 (On paper should be smarter) And its also equally as stagnent.