Just info for you:
Don't ever never use larzuk to socket Ethereal items of any kind
Better take the risk to ruin the shield to make it ebug you have 25% chance to make it 4s
in this way but the base def get 50% extra armor so your shield is 258 +50% > 387 def
with good luck it's amazing, with bad luck worthless, up to you if you bug it your self or sell like it is now
and let the buyer take the risk. (Shield bug recipe: Tal Rune + Amn Rune + Perfect Ruby + Shield)
sry for spam