You are able to already steamroll your entire pk range. Yet, you are complaining that they are able to get back their item through lowbies, which is preventing you from steamrolling your range more. I don't see how that would be a good dynamic, except maybe for you. (And a few other very competent pkers)

Also, making cabal inners harder makes it more difficult for lone players in cabals to retrieve or gain an item. Which makes me really think you want this so that you get more PK wins. I'm not sure that you need that from what you describe.