The editor removes the maximum defense +1 to the objects with ED attribute:
The Defense of Any Superior Armor spawned with +% Enhanced Defense (ac%) is calculated as follows,
Superior NOT Ethereal: Defense = [(maxac + 1) * (100 + ac%)/100]
Superior AND Ethereal: Defense = [[(maxac + 1) * 3/2] * (100 + ac%)/100]
where 'maxac' denotes the maximum base defense.
PD: Also removes durability from items with the max durability attribute