Caliban said:And in this case, you are not using natural weapons in the normal sense. You are Grappling, which is always based off your BAB. It just so happens that one of the grapple options specifically allows you to make an attack a -4 with a light weapon or natural weapon, instead of a normal grapple check for damage.
Hypersmurf said:And if you make two attacks with a natural weapon while grappling, you are receiving additional attacks for a high base attack bonus while using natural weapons.
Which is explicitly prohibited.
-Hyp.