Anybody tried stressing plants the last week to maybe kick some more flavor out of them? Thinking about flashing my light and uva at them, but giving them the same dli

Don't think I've seen anybody try it...
@Son of Hobbes Got any science of knowledge about something like this?
Drought stress is a common one. The idea isn't that you're just stressing the plants, but providing very specific, intentional types of stress in efforts to produce a desired response.
Here's some literature on early flower drought stress in industrial hemp:
Although this observation is limited in the early flowering stage, the common field stresses are adequate to induce changes in the cannabinoid profiles, particularly drought stress being the most impactful stress for hemp flower initiation with the altering the cannabinoid production by...
pubmed.ncbi.nlm.nih.gov
Here's the conclusion from it because I know most of you won't read that:
Conclusions: Although this observation is limited in the early flowering stage, the common field stresses are adequate to induce changes in the cannabinoid profiles, particularly drought stress being the most impactful stress for hemp flower initiation with the altering the cannabinoid production by decreasing CBD and THC accumulation while increasing CBG by 40%.
And remember when they talk about increases of anything (or in this case CBG,) that some of these cannabinoids exist in VERY LOW concentrations to begin with. So a 40% increase of something that may actually be 1% (or lower) of the total picture could be very negligible, or very impactful (CBN for example, there is like just this
TINY amount of CBN that is actually produced in most cannabis plants (usually around 0.2% or less), but growers are like "THC converts to CBN when you let it go too long" when we talk about harvest window.
Let that sink in.
There are all sorts of wild ideas of how to increase cannabinoids, some more valid than other, but the problem is that so much of it is anecdotal. I think (in my own opinion,) that there aren't many
last minute techniques that are going to bring a drastic change/shift of those cannabinoids during the last week of flower. It typically takes weeks for trichomes to form and mature, not just by color, but the cannabinoids inside them concentrating and producing at various capacities.
There are things you can do though that are fairly well explainable and testable by science but not necessarily about creating more potent pot, like dropping temperature in the grow space the last few weeks, which increases natural synthesis and accumulation of anthocyanins in the plant (which gives the plants colorful hues.) That's different than color expression from genetics though (meaning little tricks like those won't give you the same results as naturally purple or red cannabis plants, etc.)
Nutrient stress (essentially stopping all nutrition if feeding towards the end) can stress induce senescence (like in fall when leaves change color and fall) which can decrease chlorophyll production and the amount of chlorophyll in the leaves (as it breaks down.)
There's a grower in the Mendel's Facebook group that is experimenting with finishing his flowering plants with different spectrum (which there's plenty of literature on how spectrum effects flowering, etc.)