Crawfish boil help

While the water is heating, I add my potatoes, other veggies and seasonings. Boil until taters are done, pull out everything and save on the side.. Boil crawfish, add sausages/corn a minute or two before shutting the fire down. Shut down fire, add previously cooked potatoes/veggies and soak with crawfish until done. Perfectly cooked potatoes and crawfish every time. As a bonus, extra time for cold ones.