Would it be beneficial to put a 400w light directly under the plant as well as the 400w directly above? Just wondering because I have a spare 400w setup and she's in her 3rd week of 12-12 and she doesn't look like she's slowing down. I just started to do some lst to keep her from getting too close to the light. Light is already as high as it can go. So I thought I'd put one directly under, unless you veteran growers tell me otherwise.