Tricking your plant

So I was talking with a few other growers and they were telling me about tricking my indoor plant to bring out its sex by switching from a 18/6 to a 12/12 in veg about a month in to bring out its sex organs and than switching back to veg I wanted to know if anyone has tried or even heard of this

People take clones and flower those while the plant continues to grow stress free.

(did someone really think roots could reveg XD)

I do what they say above. Root a clone and throw it in the flower tent until it shows sex