Outside of that it's pretty clear in the PHB that you can't go Level 1 Wizard/Level 11 Sorc and scribe all spells through level 6 and then cast them with Sorcerer spell slots. I mean it's complete nonsense.
This statement already proves that you dont undestand how 5e works.
There is no such thing as "sorcerer spell slots".
You get spell slots according to your spellcaster level.
Pure spellcasters (Bard, Cleric, Druid, Sorcerer, Wizard) give you one spellcaster level per level.
Paladin and Ranger give you a spellcaster level for every second level.
The Fighter subclass Eldritch Knight and the Rogue subclass Arcane Trickster give you a spellcaster level for every third level.
Only these spellcaster levels give you slots, nothing else.
And by the way, Warlock by the way is treated completely separately, and dont give you spellcaster levels. Well, at least according to the original rules.
And by the way a Sorcerer 11 / Wizard 1 will not cast sorcerer spells when they cast wizard spells either. They will cast Wizard spells. That means the DC depends upon intelligence, not charisma. Additionally, the number of readied wizard spells also depends upon intelligence, not charisma. Its much weaker than people seem to assume. A Sorcerer 11 / Wizard might realistically at most have Int 16, so they can only ready 4 wizard spells total.
And I repeat myself, but Page 114 is not unclear of the meaning. You can learn spells from scrolls if you have slots for it. And there are only spell slots. Not wizard spell slots or sorcerer spell slots or anything like that. You get spellslots from spellcaster level and no other source. Thats how 5e managed to allow multiclass spellcasters in the first place.
The other statement is a more general statement, not a specific one, and really refers to how to levelup.
But honestly its really tiring how the exact same discussion is repeated again and again and again.
