I had an issue over the weekend where i had to keep a flowering plant in darkness for 17 hours and noticed that the flowering progression looked better then when under a 12 / 12 cycle. Has anyone done any tests to see what is the optimum amount of light during flower? Im wondering if we have the 12/12 standard due to 12 hours is the max amount of light before reverting plant back to veg. Im thinking of trying a shorter amount of light time during flower on my latest grow to test it myself but im hoping someone on the board has already played with this. Any information you can pass on would be appreciated!