[hcobb]

The combined errata would then be:

ITL 18: The Immunity to Drop Weapon enchantment protects everything the user is carrying against the spell effect, but only the enchanted item itself against mundane clumsiness and disarming attacks.

ITL 23: A Staff II or higher level is itself protected against Drop and Break weapon effects, but does not provide general immunity to the wielder.

ITL 24: As there is no Break Weapon enchantment there is no general Immunity to Break Weapon enchantment that covers the whole figure, but individual items are rendered immune to this spell (and also against accidental breakage) through Staff II or Weapon/Armor Enchantment.

ITL 28: Weapon/Armor Enchantment provides Immunity to Break Weapon to the enchanted item itself, but it does not provide general immunity to the wielder. Immunity to Drop Weapon can be added separately via Lesser Magic Item Creation, using the same procedures as the Drop Weapon enchantment.