Auto Northern Lights closet grow

Just one question. Do you guys keep your Autos under heavy light cycles (like 20/4) all the way until harvest or back it off 12/12 once they flower? Im growing a single NL plant under an LED in my closet and was thinking about transferring it into my flowering tent under my 1000w HPS to get it on the same schedule as my other plants. I can post pics if needed. Its actuall doing very well so far but I think its going to need more light soon. If it stays in the closet I will be adding CFL's for side lighting. Thanks in advance.

i grow outside during day and inside under lights at night at 18/6. you'll love the auto NL. have grown several and love all of them. outstanding yield and awesome
smoke. GL