Calling the Plate, where do you set up?

[Kaliix]

Why is it that most articles I read on where to position yourself when calling the plate seem to favor the slot? Can an umpire be effective calling the plate by setting up behind the catcher either on the inside corner or outside corner depending on where the catcher goes?

I see Major League Umpires use all different sort of techniques, some, which to my untrained eye, look like they are setting up behind the catcher and making calls from there.

It seems to me that if the catcher is set up outside that being set up on the outside corner would make sense.

I notice that trying to work from the slot that I see that I obviously see the inside corner fine but I am kinda guessing on the outside corner. I realize that over time, one would learn where the outside corner is, but why not just set up over the outside corner if that is where they are trying to pitch?

Where do you guys set up? Always in the slot? Behind where ever the catcher sets up (basically inside corner or outside corner)? Ove the middle of the plate?

I am really looking for some guidance and opinion here?