| LordKailas |
The only sort of answer I can find that seems related to this is the following.
You make all pertinent decisions about a spell (range, target, area, effect, version, and so forth) when the spell comes into effect.
This would seem to imply that things like the spell DC becomes fixed once the spell effect starts. Changes to the caster wouldn't retroactively affect the spell.
| LordKailas |
Well, it depends on how you're using the word decision. Decision isn't necessarily the same as choice.
a conclusion or resolution reached after consideration.
In any case, it seems weird that the stats for unseen crew would change up and down based on wearing and not wearing a headband of vast intelligence. Heck a feeblemind spell against the caster could cause the unseen crew to have negative ranks in profession sailor.
edit: Though in retrospect this is kind of hilarious to think that the crew has become so incompetent as to have negative ranks in the skill and probably isn't a strong argument against it working this way.