Quote Originally Posted by Gabber View Post
i'm interested in this also. i've read conflicting information though out the forums of wether or not the passive skills stack.
All available skills (from any tree) get used when in Free Stance.
I'd be surprised if passives were any different, in fact I've been building my chicken under the assumption that they're always available and always stack.

The easiest passive to test this on would be HP, since you can see the HP readout of your Companion easily in party view (e.g. Take 5% and 10% HP boosts and see if the HP Bar changes to a value that'd correspond to 15% HP). Next rank I'll be picking up my Chocobo's second HP% buff, so I'll be able to see this first-hand... but at the moment it looks like that'll be some time away yet- it's taking longer and longer to raise his exp bar when I'm running around on other lowbie classes! However, it definitely looks like the first HP buff applies no matter what stance he's in, so I don't see any real reason that stances would limit passive stacking.