I can say dark period works for tric explosion, at least in the Kush Berry I have been growing. I have an 8 plant aeroponic system under a dimable ballast, I run the first 2 weeks of flower under 600W (which is un upgrade from the 400W i use for veg) after the first 2 weeks I move up to 750w, and the last 2 weeks I put it at 1000W, seems to produce big thick buds. Anyways for the dark period I harvested half the plants (4 of them) after running a week flush, and I left the other 4 plants to run for another 3 days without light then 1 , 8 hour light period, then 3 more dark days the harvested. The amount of trics production was shocking. The dark period does work.