Originally Posted by Bongulator

I've tried 48 hours dark before harvest, and 72 hours. I've also done 24 hours of light before harvest. And I've harvested right after standard lights off (e.g. 12/12), and right after standard lights on. And I could never tell any difference. Believe me, I wanted to, but neither I nor anyone else could tell any difference.

I think it is simply the fact that the buildup of the THC and other fun ingredients takes place over a long period of time, a tiny bit added each day. So even if there is some difference, it's slight *and* it only has 2 or 3 days to make any difference at all, and won't affect the other 57 days worth (or whatever) of ingredients that have already built up. Thus, I suspect the effect, if there is any at all, is actually less than 1 percent.

Conclusion: Check your trichomes and when they're ready, get hacking, whatever the light cycle may have been the previous 12, 24, 48 or 72 hours.