OK. I have the save where SF carriers don't auto-pop.
I also threw in a case where the SF just hang around the border planet, instead of joining up with their newly spawned SF elsewhere and finding some other planet to hang around on in waiting.
If you wait around long enough for the glut of threat ships from the recent CPA to become threat fleet, they will just hang around to instead of find some other planet to wait for an opening.
Maybe trickle of dyson gattlings coming in to try to take a stab at the threat is fooling both SF and threat fleet that the planet is still under attack?
Both saves have the same planet with interesting behavior. Let me know if you want me to copy either one to mantis.
As you may notice, one of the AIs is the Special Forces Captain, which in addition to getting tons of SF guard posts, doesn't it also get a buff in SF spawn rate beyond just what the large number of SF posts would imply? If so, that would explain how it built up to 7000 (or at least it was 7-8 thousand before I beacheaded to get rid of a bunch of them) built up so quickly, and why this is like the 3rd time this game that special forces have built up to the point to be a major impediment to progress. It sort of is the SF Captains job.