my question was awnswered thank you.... a 1ft plant growing to 3-5ft during 12/12 that happends due to the plant knowing it needs to shout up for light ( it would be contending for from other plant) now i was talking after about 4ft your plants not going to be 8-12ft tall it will get 3x's bigger not 3x TALLER , The claim that a plant at 3 ft would be AT LEAST Dubble it's higth to 3X's would mean 6-9FT tall and that was wrong... Now yes i have seen smaller plants that are still in there early groth stage 1-12 inchs that go nutz cause there contending for light