I can almost guarantee that it's the same "bug" that plagues the Tier 2/3 'scorts.
i will be trying to figure that out immediately, just bought it. i want to support ships like this added to the game. even if it is loaded up on extra, the effect from field projectors, and the regeneration is based on the shield modifier, and not the hitpoint total. so the extra can be very nice, its what makes the ships usable at all, it does have some down sides