RED update thoughts and feedback

Just curious, do Lucky Item Scrolls adjust the base stats of Zero's weapon in any way aside from adding them to the respective set? Like, would the Sweetwater Lucky Item scroll grant the weapon the base +30% bossing and +10% Defense Ignore that all other Sweetwater weapons inherently have, or are the stats left untouched?

They don't change the stats of the weapons. The "missing" +30% Boss Damage and +10% Ignore DEF, compared to Fafnir or Sweetwater weapons, is already included on the final forms of Zero's weapons at 170.