I have been taught many different ways of hanging a door. It seems like everyone wants the same outcome. Plumb, square, perfect reveals and a door that closes flat against the jambs rabbit. Yet every carpenter does it differently. Old guys would always say “It's all experience. You learn to get a feel for it.” Then they would hang it slightly different every time.
Any task in finish carpentry is at its most efficient if it’s broken into repeatable steps. Door hanging has to be consistently done this way. Here is how.