I have BCM chicks to hens. My goal is to band them all, and I have decided I would prefer to use a Bandette. What I am trying to figure out is; What size of bandette from 4 weeks to 12 weeks What size of bandette from 12 weeks to 1year Cockerels will not need to be banded after 18 weeks. Please, surely someone has enough experience with BCM leg size to make an honest guess. The bandettes aren't cheap, and I could have up to 400 birds at any given time, so I have to buy like > $100 worth of bandettes to make this work. Getting the wrong size would be expensive and suck. I will take the majority view, so just make an informed suggestion.