I have 6 grows under my belt so still a newbie, but on to my point - before initialising flowering, I give my ladies 36-72 hrs of complete darkness, then when I switch to 12/12, after 2-3 days I have clusters of new pistils shooting everywhere, then I will do the same again in the middle of the flowering period, then again at the end, I end up with about 25% more yield with this old trick I learned from an old timer. Hope this helps you get higher for longer. This seems to help everything from turpens to yield to speed of growth IMO it is very little hassle for a whole lot of gain.