Best method of finishing your bud?

Hello everyone and thanks for reading.
I have been told that by shocking or stressing your weed the last two days will "finish" your buds. I'm in an aeroflo system and the only thing I do is run pure water for the last four days or so. My buddy says he always turns the lights out and the water pump off for two days (besides flushing). He monitors the plants and when they start to look droopy he tunrs the pump on momentarily to keep them alive. According to him, the buds explode with crystals, fill out even more, and are "finished."
I can see how the theory is logical in one sense. I do however, find it difficult to bring myself to stress my plants at any time never mind two days from trimming. Turning the lights off only seems like it would keep the buds from filling out.
Any thoughts, ideas, criticisms, or otherwise is appreciated. Maybe some one's heard of this? Maybe the idea is right but the process is incorrect?

yeah, alot of people turn the lights off for like two days at the end of flowering, they say the same thing, helps produce more thc and whatnot..
i even think that there was an article in maybe last months hightimes that said pretty much the same things, and the authour went one step further by flushing the last time with cold or ice water, i forget which one it was.. he said the same thing, it shocks the plants and makes them produce more thc..

Have you done either of those things? If so what were the results compared to when you didn't?
Thanks for the reply!