The System said:
Ate at a boil last night. Crawfish were really good and a little different than I'm used to. I asked the "cook" what he did differently...he used oranges. Never thought of that, but they were so good that I'll squeeze some oranges in next time and throw a few in the pot.
I learned from my wife's uncle in Beaumont who caters them on the side.
Oranges, lemons, onion, garlic, liquid boil, dry boil, salt, butter. I have two orange trees that grow terrible oranges. Full of seeds. The oranges drop off of the trees during crawfish season, so they go in the pot.
I don't have a specific soak time. The spice/soak time/cook time is just an equation with three variables, so it depends. If they soaked too long and overcook and weren't spicy enough...add more seasoning. If they cooked just enough and are hot AF, too much seasoning. I just sample out of the pot every few minutes until they are done and properly seasoned.
The worst thing you can do is overcook them IMO. Total pain in the ass, meat breaks apart and sticks to the shell. You can always throw some seasoning on top of underseasoned bugs, but you can't uncook them. I err to less soak if I'm not sure.