Quote Originally Posted by ixrisor View Post
You can definitely add constant numbers to your armour class (or attack bonus or whatever) more than once, so why would you not be able to add variable bonuses more than once? For example, a manifested ghost with battle dancer levels should add its charisma to its armour class twice, once as a deflection bonus and once as an untyped bonus.
Exactly its typing that matters and the untyped abilities unless stated otherwise stack even if the abilities draw from the same source for a #. That example is easier as Deflection + untyped.

If the abilities give "+stat mod to ac" then its not untyped... that itself is a typed bonus. Similar to dex mod to AC. So its either typed or not and ive always understood monks to be untyped class bonus. Not sure why PF which copied 3.5s monk wording 100% would try to change the typing of the bonus... with out changing its wording.