Why you ask for Sustain because you are to lazy to tell your pet onetime where it should stand ?

Sorry but many other Summoners are able to tell there pet where to stand.. why not you ?
The only reason i know why is cause someone is lazy, it is a fact that if you tell your pet where to stand like behind the boss or whereever that it is not dying.

And the dps lose is maybe 1 autoattack of the pet...
If there bring sustain back be happy if not you probably need to get your ass up and tell your pet where to stand.