Rend, what bonus to damage?

[Lord Ben]

How do you figure out rend damage? Is it 1.5x str or 2x str or does it depend on the monster? Grey Renders, trolls, Girillions, etc are all 1.5x str but Dire Apes have 2x str. They're the only 2x str ones that I know. Is it wrong or is it just that the Dire Ape is different then all the other creatures with rend?

 

[Darkness]

Hm. I think the dire ape's in error. (Or maybe he's an exception. Probably not, though.)

 

[Grazzt]

I believe the dire ape is a typo. Everywhere else I've seen rend (MM2, FF, for example) has 1.5 x Str bonus.

 

[Dr. Zoom]

Notice that even the Dire Ape has x1.5 Str in the stat block (2d6+9). I can only assume that the Rend text is incorrect.