Where the new growth is beginning open the two flower things, on the top of the plant, the main cola top... you cut that 3/4ths way down with a snip of scissors.
If you want to experment next crop take two aside and at 6-8 inches fim wait 2 weeks, and plant will be back in full growth, then 2 weeks before you put her out to flower fim again. Do a 36 hr dark and now out to Flower. Now when you see flowers comin out fim one plant (just once) and don't touch other plant at all. Big Buds to you Amigo