hanging unloaded doors?

why would you hang the doors without the hardware? cut in the jam's and paint all of the inside of the door and install all of the hardware and then adjust the door to be right, mask and paint the car,,,Yay no chance of scratching the paint and already aligned????

The very first process should be aligning all sheet-metal (including adding or subtracting mettle to correct poor factory gaps).

That is, if you want a very nice car vs just a car with a new paint job.