I thought about that long time ago and I did try different times and even though I really never gave any conscious thought to it; but as a true stoner I always pull em up on the first flood after the light comes on then I cut them off at the butt and stick them in purified water for the last 24 hours of the grow. I then remove them just when the lights come back on for the next shift from the trough with the purified water. This allows the plant to get rid of a lot of things that myself personally would rather not smoke and I'm not really keen on the fertilizer taste. You guys must be on the correct track. I agree, morning. Leaving the plant(s) after harvest in extreme lighting after removing there source of water can cause your weed to be stangy. So slow dry in a room with out direct sunlight or extreme lighting. I almost forgot, trim as many fan leaves as you quikly can by hand before you hang to dry. These big fan leaves will also give your bud a stangy like homegrown taste.