I haven't seen this topic come up before there for I am mentioning it now
I am not sure how man hunters are aware of this but all of your pets operate on seperate cooldowns and thus It is possible to cast Call of the Wild, Dismiss, Call Pet2 prior the pull for longer duration of Attack Power bonus. This can also be used during phase transitions and such when you are not in the middle of a rotation as interrupting an rotation for a pet swap will likely result in a dps deficeit