I'd have to agree. And I too thought they were permanent though that might be imba.
They need to either cost no pop cap and remain temporary or take up 1 pop (or only 1/2 if possible) but become permanent (until killed).
The first duty of every Starfleet officer is to the truth, whether it's scientific truth or historical truth or personal truth! It is the guiding principle on which Starfleet is based! *Jean-Luc Picard*