well ur plant should be at 18/6.. and they should be cloned at 18/6, when its under the impression its summer. find good looking branches.. but not the ones that stand off another branch.. snip those off...

cut that good branch at a 45º angle and immediately dip it in rooting solution. plant it and put it back in the 18/6 rotation. Do this for as many clones as u want, I guess but don't over do it.. Give it about 2 weeks, then move ONLY ONE to the 12/12 so it can bud. When thats done you can tell whether ALL of'm are a male or female.. Males, throw'm out.. or dry'm out n make tea... If its a female, throw out the clone you sent to the 12/12 and let the other clones grow a little more so you can move them to the 12/12.