I don't think this will be good idea with that system of shield. You need to spend 60 power to have 40 shields on every arc (multipler 4). The same number of power on Baltimore 3 can deal 54-72 dmg or you can use missile from Vic to do 30 dmg with cost of 6 power. I calculate dmg with officer skill that give dmg boost. With your proposition you will need to spend 96 power to have 40 shields on each arc. It's nonsense. Because even if you have that energy multiple enemy come to you, shot to one arc, and 78 of used power is useless.