Save DCs occasionally seem incorrect...

[Unseelie]

So I'm working on a stat block for a Gibbering Mouther from Bestiary and the save DCs for Gibbering and Spittle don't seem to match the Bestiary entry.

Am I missing something simple here, or is there a problem?

Gibbering (DC 19) (Su) As a free action, a gibbering mouther can emit a cacophony of maddening sound. All creatures other than gibbering mouthers within 60 feet must succeed on a DC 13 Will save or be confused for 1 round. This is a mindaffecting compulsion insanity effect. A creature that saves cannot be affected by the same mouther’s gibbering for 24 hours. The save DC is Constitution-based.

Spittle (DC 19) (Ex) Each round as a free action, a gibbering mouther can emit a stream of acidic spittle at one target within 30 feet. On a successful attack, the target is blinded for 1d4 rounds unless he succeeds on a DC 18 Fortitude save. The save DC is Constitution-based.

 

[Agyess]

it appears to be a matter of paizo not following their own rules when creating a monster. The save DC 19 is the correct DC for a 4HD monster w/ a +7 stat bonus. Its my guess that that number is being automatically generated by HL. While the text is the numbers from the bestiary.
C.

 

[bodrin]

Ninja'd but here's the formula

4HD gibbering mouther! 24 Con (+7)

Base DC 10 + 1/2 HD + stat modifier

10+2+7(con)= 19

Text is wrong formula is correct. Both DC's should be DC19 not 13 and 18.

 

[Agyess]

threw it out to the general rules board at paizo and see what kind of answer it draws there.
link

 

[Unseelie]

threw it out to the general rules board at paizo and see what kind of answer it draws there.
link

Thanks, I appreciate it. Good to know that HL is calculating things correctly at least.