Prehensile Hair and STR Bonuses

[pandacache]

Hey, everyone.

I've been looking over some witch hexes for some of my players, and wasn't quite sure if there was an order of operations when it came to applying effects, or if there was any pre-existing ruling on how the Witch Hex Prehensile Hair interacts with Strength bonuses.

Prehensile Hair:

Effect: The witch can instantly cause her hair (or even her eyebrows) to grow up to 10 feet long or to shrink to its normal length, and can manipulate her hair as if it were a limb with a Strength score equal to her Intelligence score. Her hair has reach 10 feet, and she can use it as a secondary natural attack that deals 1d3 points of damage (1d2 for a Small witch). Her hair can manipulate objects (but not weapons) as dexterously as a human hand.

The hair cannot be sundered or attacked as a separate creature. Pieces cut from the witch’s elongated hair shrink away to nothing. Using her hair does not harm the witch’s head or neck, even if she lifts something heavy with it. The witch can manipulate her hair a number of minutes each day equal to her level; these minutes do not need to be consecutive, but must be spent in 1-minute increments. A typical male witch with this hex can also manipulate his beard, moustache, or eyebrows.

Since the hair is treated as a limb with Strength equal to the Witch's Intelligence, I'm curious if it's susceptible to buffing via Strength increases. Obviously improving your Intelligence improves the hair's equivalent Strength score, but what happens if the hair is in use and the Witch is buffed with Bull's Strength or the like?

An example case:

Witch with 10 STR and 20 INT casts the Prehensile Hair Hex.
Hair extends and becomes a natural attack, treated as though it were being swung about with 20 STR (+5 mod).
Witch is buffed with Bull's strength, improving her STR score to 14.

Does the hair now have a strength of 24, or does it remain at 20?

Presumably, since the hair is part of the Witch, it's subject to all of the ability score adjustments and buffs that the affect the Witch. However, since the hex states that it is treated as if it were a limb with STR = INT, I'm not sure any STR bonuses would apply. Any thoughts?

[Cavall]

All intelligence based. No matter how much you buff strength, the power of the hair is based off a different stat.

[pandacache]

So a Witch with, say, 20 STR and 10 INT would treat her hair as only having 10 STR, rather than 20?

This seems kind of silly if using the hex is causing your STR to be treated as lower than it actually is, but would be the case if what you're saying is true.

[Rub-Eta]

Too me, silly is that hair can have the strength like a normal human, let alone a strong human.

The hair's STR depends on the witch's INT, nothing else. The witch's STR has nothing to do with the hair. And you can't cast bull's strength on the hair, as far as I know, as it's hair.

And tbh, I've never seen a witch with 20 STR or 10 INT. That's just straight out a s+%@ty witch.