Looking at some ads for LEDs, one of them showed the bloom cycle to be 12 hours light and only 6 hours of dark. I really never thought of this but what if the plants don't need a full 12 hours of darkness? The short day triggers the bloom, maybe after 6 hours of darkness they're ready to go just like they are in veg. Tempted to try it but would love to hear if this has been done. It would speed up the flowering time a bit. On a plant that normally takes 12 weeks to flower this would cut 3 weeks off finishing in 9 weeks. Theoretically. Every 4 days you subtract a day from the end.