hi all im a good chippi and hung lots of doors. the way i do mine is make the door fit the opening by leaving a 2-3mm gap all round depending on the door and place a leading edge on the front edge so it doesnt hit the frame when it closes, but recently ive seen doors being hung leaving a 4mm gap and then packing a 2mm gap behind the hinge which will close the gap to 2mm all round. i asked why they do it like this and they said that no leading edge will be required like this? is this a new method of being taught or am i just old