Once follicles are as big as a quarter you can start pairing and get some hopefully successful locks. Some people pair all year long and others only pair for a few months when follicles are starting to mature and get large enough to easily palpate. I used to pair all year long because I wasn't very good at detecting follicles. But now, I only pair them up when the follicles are as big or bigger than a quarter. I've noticed my male is a harder "worker" and doesn't get worn out trying to copulate with a girl who isn't quite ready for him.
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