Reverse has worked for a strain I have that ALWAYS goes hermi on me and badly. Love the strain but half the time it is ruined because of this. I spray with Coco wet which is $5 for a small bottle but you only need 1/2 tsp a gal. I spray first day of 12/12 and again at 10 days. That strain no longer hermies . Also you can spray the mother plant befpore taking the clones and it is supposed to help pass the hormone on to the new plants. you cna not use the stuf once your plant is well into bloom and expect it to do anything. It wont work in that case. I spray with lights off.