To be honest, I’ve never taken note of height happening in surges. I would once a week make sure my light was at 18-20†above plant tops. Never really thought about how one week would be an adjustment of an inch, and the next week it being 3â€. 🤣 But then again, I was unsure of what to see when an auto goes “into flowerâ€...I was waiting to see several small clusters of hairs or something ...long story short, I was probably 3 weeks into flower before I changed nutes and switching my amazon light from veg to bloom/veg.
Part of learning is knowing what you need to learn. I’ve read about the stretch, but assumed it was more of a photo thing instead of an auto thing.