A feat or ability, I cannot remember which, that modifies the save progression of your class. Specifically, it allows you to change the good save progression to something else. For instance, a fighter could change his good save progression from Fortitude to Will. A fellow mentioned this to me in passing last week in my FLGS but I cannot for the life of me remember where this ability was.
It would be greatly appreciated if someone could point me in the right direction.
Thanks!
Volf
PS I am not sure whether the source was a paizo book or a 3rd party book.