If the player invokes Restore while the ship's shield is disabled, the shield isn't properly charged. EDIT: In this situation, Domina should repair armor instead.
Stations and repair kits can repair armor segments at 0 hp (1.7 alpha), but Restore can't. Restore should be able to repair armor regardless of its damage level.
It would also be nice if the player could choose from a dockscreen whether to let Domina restore armor or shields. Currently, Domina only repairs armor if a shield isn't installed. Since armor is tougher than shields, the current Domina functionality biases the player toward playing without a shield installed.
Here's a mod with the proposed changes: