Is there any consensus on if/how Natural Weapons racial ability and Ring of Fangs specialization bonuses stack? These are the rough arguments I've seen:
Natural Weapons and Ring of Fangs both give a modified specialization bonus. You just apply the higher of the two.
You breakdown the bonuses from specialization, natural weapons, and ring of fangs. Specialization adds character level, natural weapons adds half character level, Ring of Fangs adds your chatacter level again.
Natural Weapons and Ring of Fangs stack completely so you apply your full specialization bonus from both.
Natural Weapons: Vesk gain a unique weapon specialization with their natural weapons at 3rd level, allowing them to add 1–1/2 × their character level to their damage rolls for their natural weapons (instead of just adding their character level, as usual).
Ring of Fangs: You automatically gain a special version of the Weapon Specialization feat that adds double your level to the damage of these unarmed attacks (rather than adding your level).