Raw only, really need to stress to first time buyers not cooked.
Once or twice a week will help keep teeth clean, a more experienced raw eater would consider a whole wing (all 3 pieces) a meal, a novice isnt going to eat it all, they will still want dinner!
You also need to tell people who trying raw first time they dont all take to it and munch straight away so be patient, start small and work up
Also people need to handle raw meat for animals the same way they would for humans, no leaving at room temp overnight etc
I defrost and find putting them in a sandwich bag and then into a bowl of hot water before serving takes any chill off