One batch of 25 CX each fall. I like fall because it is warm while they are chicks, and I can get them outside at 2 weeks, and then it cools off as they get older and prefer colder weather. I do a staggered butchering starting at week 8 or 9 with the largest birds, and ending at week 13. Dressed weights of between 5 and 10 lbs.
Like Moppet, I feed them 2x a day -- all they can eat for 15 minutes. I also give them access to a yard where there is some natural forage, plus old produce tossed in. I put them in a large, secure shed in the evenings to reduce risk of predator losses.