Started off my Sorcerer with a 17 Charisma, and let Volo have a go at my eye for the +1. While the 18 (post surgical) Charisma is affecting my Spell Attack bonus, it is NOT affecting my Spell Save DC (still stuck at 13; not 14v like it should be.). If I'm going to feel this violated, I should at least get the full benefit of the 18 Charisma, folks!