Also, on the topic of pets, a relevant but short thread incase there are nerfs on the horizon: Pets and Crucible
Also note that I am not aware of any other Pet build even touching the 6 min mark in the Current Patch and even the one in the above thread is from a few patches ago, before Crucible got a difficulty upgrade. So I don’t know of its current times.
As for SR, all my builds are capable of SR 75+, but that is on SC and you can still get boss+mutator combos that are impossible to beat. Also, aggro abuse…