Just to add to the confusion... the armor bonus from mage armor does stack with the cover bonus from a tower shield. But the cover bonus from a tower sheild does not stack with the cover bonus from the shield spell. However, the cover bonus from the shield spell does stack with the armor bonus provided by a shield that isn't a tower shield. Of course, we must also mention that the cover bonus from a tower shield does stack with the armor bonus from a non-tower shield.
Wheeeeee....
-AK
Just face em different directions.
