2 buffs of the same type and source will never stack. And pet = 1 source. Different pet buffs though, stack.
Example: Tengu min/max with pink panda crit% with brownie stacks iirc.
Judging by your sig i'll guess you still have the gumiho, for that you could get a white tiger for it's min/max (you won't be feeling the 10% crit difference that much) and add a brownie for a finish if you'd actually prefer to spam so many pet buffs every 10 minutes(pink panda's buff lasts 15 minutes).
Remember to rep.
Last edited by Krem; 01-12-2012 at 11:06 AM.