Do spell states have any special properties?

[temnix]

You know how a combination of spell states can be used to channel a spell's effect? If I want my spell to work only on such-and-such creatures, I put them in spell state 1, 2 and 3 and filter the spell through to target only those who have all three. Well, I would like to make use of the whole set of spell states to avoid overlap and accidental mix-ups. Is there anything special about STORY_MODE that I should not use it, or SI_EVOCATION and the rest of them, or SNEAK_ATTACK_IMMUNITY? They don't actually turn on those abilities, just record the fact of them, yes?

[Ardanis]

Yes, they're just a manually added flag, albeit reliant upon by some core game scripts.