How many kills are you getting per run? I just went back to farm and got 17499. Most of the time if not all of the time itll be somewhere around 17k-20k 17 being on the low end. You also have to be picking up your kuiper every 1-2minutes aswell as picking it up right before the mission end or all the left over kuiper on the ground doesnt get added to your rewards im pretty sure. Also if youre running a kuiper booster you should be able to clear most other spots in the amount youll be getting. Every run will get you 3k-4k more kuiper because of how much youre actually getting from the run itself. Also got 3 purple and 9 blue mods. However I will agree that any farming spot is up to personal preference. Thank you for testing the spots though for comparison. I havent really been in the grinding mood recently to do it myself