Thanks Doncaster! So... after last BGS fix.... yuo say better, good! I'm talking about a low populated system, hope it works the same! But tell me: Me and my groups must do "only" massive missions/passengers against? Or are there other tricks ?
The system in my example was 50,000 population, so that shouldn't be a barrier. (To be clear, it's not my system, so I don't know exactly how they did it)
The issue with the BGS seems to have been that missions *were* counted much more strongly than other influence sources, so in a system with random player traffic, one or two passing visitors picking up a mission for a retreating faction could easily push it back over 2.5% - while the passing effects of trade, exploration data, bounties, etc. were not benefiting the controlling faction as much as they should have, so that couldn't be countered.
Looking at influence movements since Friday - and it's only been two days, so limited data - the benefit from trade, exploration and bounties seems to be much larger than before. It'll be a couple of weeks before we see if this has made retreats in higher-traffic systems more likely in general.
I would say, plenty of trade, exploration and bounty hunting for the system controller, and run missions for everyone except the faction you want to retreat. But we're only two days into the new balance so no-one knows which sort will be most effective yet.