EVE General Discussion

That has zero to do with anything. The chance of a commander spawn in an anomaly is chance based (just like the loot drops in the related DED complexes those anomalies have a chance to spawn as escalations). This can be seen in game via loot prices and how they have dropped since CCP modified anomalies (and expeditions). ie, if there were only so many faction spawns as you claim, prices would remain stable, but they haven't they have dropped, because more people doing anomalies means more commander spawns and expeditions in total (meaning more faction and deadspace loot on the market).

The real problem here is that people (like the OP) try to figure out percentages ("I will get one faction spawn for every 10 havens") for something that is completely random. This is human nature in action, most people don't like ambiguity or uncertainty, so they try to assign "patterns" to everything. As I noted once in the missions and complexes forum, PVE players are INTENSELY superstitious (I think it's a character trait of gamers that prefer PVE). If you told a ratter or mission runner that jumping up and down 4 times on one leg in front of their computers then making the sign of the cross would generate better loot drops, you'd see a lot more hopping Catholic converts killing rats (lol).

Last week, while ratting one night, I got (for the 1st time in my EVE career), THREE commander spawns from back to back to back havens. I got 2 escalations to DED 10/10 plexes that night. Since then I've had the regular random spawns/no spawns. The system is working fine, the problem here is between the monitor and the chair...