And you can still mix and match actions with the BGS too. Certain combinations now can boost factions very quickly and put them on a very advantageous footing when wars become pending. As far as security elimination, on a 1.5 billion pop system I found that after killing 50 security I moved 1.5%, with 100 it moved 1.7% and 150 1.8%. It could have been how ED rounds things up or down, but it became very difficult for a single commander to do much more. I think once crime and punishment come into force this will attenuate murder with the BGS as it will become much more difficult to fly unmolested. For example I was hostile to the Feds but all Federal aligned stations still let me dock, which I found disappointing.
That's because it was 1.5 billion...not because murder is fine.
In fact, 50 ships to do 1.5% in 1,5 billion is exactly the problem.
However, I don't know whether FD can actually punish people properly. This patch started including naval response to murder. What this did for those who murder against us was to actually make them faster, not slower in that regard. So it's even more damage to remedy now. (thank FD)