I got 8 roos out of the 10 'straight run' chicks I ordered. Of the 5 pullets I ordered, 4 were pullets and they snuck in 1 roo on me. My Aunt Imogene had 3 boys and her sister had 3 boys and I had 2 boys and was scared I'd have another one, so quit. The 7-year cycle thing makes sense to...