1. Am I missing a part of this feat? From what I can tell, I gained only the +2 will from it, but it's entirely possible I'm missing something or there are effects that simply don't show up on score etc.
2. If I'm not missing anything, and bullheaded does just give +2 will, would this effect stack with iron will, granting a total +4 to one's will save?
3. If bullheaded grants only +2 will, and it doesn't stack with iron will (as I expect it doesn't), why have it as a feat at all?
Thanks to anyone who could help me out.

