The "your plants will stress" shit is blown way out of proportion.
It's like anything that's meticulous. I use legal prohormones and designer steroids, even a few illegal ones a few times. The orals are not good for your liver, but I love to lift, so you do it carefully. But people overestimate, and use absolutes with these things. Like if you take this hormone for 5 weeks instead of 4, your lover is gonna fail and shrivel up. If you don't do this or that, it's a failure and not worth it. If you let ANY light in, they're gonna hermie. I may not be a seasoned grower, at all, by any means. But light's are on plants 24/7 in some form in nature, by the moon, and night sky, etc. I may be new at this, but even I can figure this out. Don't always buy into the hype of things. Regular stress, sure, but a handful of times, doubt it, dimebag.