Quote Originally Posted by GeminiVeil View Post
I did ask this question in the Q&A 3.5 RAW. I was told, by curmudgeon (apologies if he reads this and I either misquote or spelled his name wrong) that because one requires light armor and the other requires no armor, they don't stack. But, even assuming this is poor editing, since both are titled "AC bonus" they still wouldn't stack because it is multiple abilities of the same name, which also don't stack. (which is also why you can't use Fist of the Forests "AC bonus" ability to work with the monk, even though one applies Wis and the other applies Con)
I see the RAW, but since it is intended as a Monk or Barbarian Prestige class, I honestly think that FotF was supposed to stack with Monk.