I agree, I've had a spider that's gotten up to weight in under 2 years but I personally wouldn't breed so young.
I wait until at least 3 years old and she must be at least 1500g. Those are my guidelines, just because a female COULD breed at two, doesn't exactly mean she SHOULD. I compare it to a human female teenager having a child vs. a mid 20s female. Chances are there's less risks is the female is more mature. But those are just my own opinions that I use with my breeders. I won't risk the well being of a female just because I'm impatient.
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