Yes the system is not too good, i was following Amber rose in the Kate Russel stream, on her 2 hr period of play, i tried to jump following her FSD wake, (more chance of ending up in the same instance), but sometimes failed due to just not letting me jump, even after targeting it.
So i was watching at the same time, so jumped anyway to where she was going, i only managed the same instance in a couple of systems out of maybe 10.
multi-player is lacking just now, hopefully it will be improved, (wings coming soon) and we will be able to form groups in open to jump together.