How soon after 12/12 should I be able to successfu...

I agree with norcal very hard to see... I don't know either.. Maybe wait a few days.... It's not like a set time. Like think of how fast the biochemistry is changing over. It's a huge change that's happening to your plant right now. She is saying hey I'm switching into flower mode so I'm stretching and reaching out my flowers... Males will usually reach higher then females so then drop their pollen onto the female.. But this is no Guarantee, I wish there was a way to tell you that yes it male or female.. But unfortunately you'll have to wait and see. There is also a correlation between how fast the flowers will come on and photosynthesis. My flowers will usually come up and show by the second week of flowering. Make sense? Happy growing.