Asymmetrical Claw Damage: How To

[chaoscowboy]

So I'm making me a crab-people race, hush hush on specifically what I'm working on but, the race is inspired by actual crabs, so females have two claws at 1d6 while males have one at 1d4 and the other at 1d8. I've only added natural weapons by copying from existing races before, and while I know how to check the genders by looking at the code behind the Lashunta race, I'm not certain how to go about making this work specifically.

EDIT: It looks like there's a way to add varying numbers of claw attacks so really the question is how do I add a natural attack via script rather than the usual bootstrap way?

EDIT x2: So I'm thinking I'll just default to 1d6, two claws. Then if male, alter the damage. I think I can figure that out at least.

Edit x3: That doesn't seem to be working.