The only feedback I have is that I see more pirates in New Berlin than RM by far. I remember one day when the Black.Pearl stayed parked by the Ring pirating for an hour or so, no RM in sight, and even this morning there was a corsair gunboat right at the jumphole to sig-13.
And 9 times out of 10 the pirates, when they do get run out, are run out by BH's or Mercs rather than RM.
I can't really comment on interaction with the RM, because it is almost nonexistent. I remember once being asked to state my intentions by RM out of hundreds of trade runs and that's about it.