But this thread isn't about disconnecting a transformer primary, many would have a different opinion of how to disconnect that than how to disconnect a typical service drop from a service.
When it comes to which way is safest, there is still no right or wrong. One way is safer for one hazard, and another way is safer for another hazard, yet all potential hazards are there pretty much all the time. How do you know if today is the day you will slip and short an ungrounded conductor (or your energized crimper head) to the grounded conductor, vs the day you you will slip and come into contact with two voltage potentials somehow? Maybe neither happens and you fall off the ladder instead.
