i'm interested in this also. i've read conflicting information though out the forums of wether or not the passive skills stack. i would like to make a hybrid chocobo of both the attack and healer trees. i'm just not sure if the crit bonuses from both trees will stack.

in one topic titled something like "chocobo philosophy" it states that it does. in another topic i read it states that it does not stack in free stance but there wasn't any info on it stacking in healer stance ( for instance ).

so i'm still scratching my head on this...