I'll keep this short & sweet:
Please do not grind Empire rank in any system EXPLOITED or CONTROLLED by Aisling Duval. It hurts us. Seriously. That might not make sense to you, but that's the way it is.
If you need a location to grind in (especially if you want to do it by CZ), please check the MINOR FACTION FLASHPOINTS section at the lower right of https://docs.google.com/spreadsheets/d/ ... ingle=true to see if the factions named there are Imperial (you can look the system up on the Galmap or Inara/eddb and get the info for factions and allegiances). If its an Imperial faction, go for it! You will help your rank and also help the Empire's Powerplay at the same time! Nobody will get cranky at you for this (except maybe the Federation, but who cares what they think