Unascended synths also get +10% from actual synth tech, for a total of +20% for ascended ones, so they still get the same general bonus old synths got. There is now actually an incensitive to pick that ascension perk, while previously it was feasible to stop at cyborgs. I actually don't think the output should drop after ascension, as old pops now get +20% output over whatever organic traits they had, which can't possibly amount to that, aside from +25% bonus to one science. The only output that should drop is energy.It seems like most people here haven't played synths properly. Partly the best features of synth are not fully understood and deemed as useless. The other part is people not being aware of applied boni. E.g. synth ascenion gives +10% robo output on jobs. Not as much as the +20% from pre-Le-Guin, but still a lot. And they can have unity and research boni.
Seems like most of the information provided in this thread concerning synth ascenion is simply wront.
In my opinion, synth is still really, really strong if played correctly. And keep in mind that right after the ascension took place (project finished), you will have many pops without traits. So of course your output will drop for a few years. But AFTER modding your ascended pops from no traits to full traits (and you also get another trait point for robos), your economy will skyrocket.
It is a pity, however, that you can't modify pops per stratum. There was a talk about making it possible, but clearly it wasn't implemented.