Quote Originally Posted by GregTD View Post
While I don't believe he realizes it, zimmer already shot that down:



"Though on the plus side, the rejuvenating effects of the Soul Splice will allow you to start with all spell slots fully replenished."

We know that V's body was "rejuvenated" to full HP this time. The Soul Splice rejuvenation took less than 20 minutes, and didn't involve V looking at her spell book, or resting.

So, we know that the IFCC can do it, and the restoration of health (that was not promised) shows that V gets benefits from the grab that weren't explained before hand.

So unless you have a good story about how V picked up an extra bit of Int, and an extra level, without anyone really noticing, I'd say the "IFCC refills" is the best explanation.
The "IFCC refills" isn't an explanation, and it has zero backing. The fact that a soul splice rejuvenates the subject to full spellcasting capability does not indicate whether or not the Directors can do the same thing at any old time.

V likely levelled to 16 while he was on his own on the Plane of Elemental Ranch Dressing. We know he did at least some adventuring while there. If he levelled to 16, he got a stat increase, which he likely put into Int, increasing it from 23 to 24. It is by far the more reasonable explanation.