Kensai and Necklace of natural attacks

[Sapreaver]

If I were a kensai and had my natural weapon what ever it may be as my weapon focus and enchanted it through exp to be +5 and what ever else I choose, could I then equip a necklace of natural attacks that affects the same natural weapon for extra enhancements?

[TuggyNE]

As long as they don't overlap, yes.