This is a clever idea and a great usage of many smaller ideas discussed about moving captured specs.
If you are worried about OP-ness, you could make it so that you can only move captured specs by putting them on the same sub as a warden. This creates a more local effect and can be used more strategically as opposed to just having awesome power everywhere.
Of course, by putting them on a sub with a warden means you can have drillers and other specialist on that sub, therefore making the pirate counter less effective under certain circumstances.
Random note, in the current state wardens don't have any stacking power. Take it as you will, but there is absolutely no reason to hire a second warden (besides the local ability).
Zyxe? Now that is a name I haven't heard in a long time.