Mephisto, is a great place to get knowledge from, for breeding. Goauto is also a great breeder The can give you better information that is aimed at breeding, as I like to grow more than breed. In my head, it seems logical to pollinate them as soon as the hairs show up that way it has maximum time to mature the seeds, also cuz It's done at 65-75 days doesn't necessarily mean you have to cut it down at that time. You could let it go longer for seeds to mature better.