If its got the genes doesn't matter what you do
Hermies show early, buds tips and lower inside buds are where you'll find them
Some females plants , especially feminised , tend to throw a few nannas but they are usually sterile and appear near the top at end of grow
Enormous amounts of stress is required for this to happen to a plant or strain that hasn't previously shown this trait
Flower is the most unforgiving stage of the grow , any error will usually cause a drop in yield, so try not cause any undue stress