Would be interested to know more about your UVB experimant Sam if you care to elaborate. What UVB lights did you use? How close where they? What was the strength of the UVB and wattage of the bulbs? How long a duration was the exposure? My experience with 10% and 12% UVB bulbs supplemented during flower has been different. Earlier maturing is just one aspect amongest other traits have been observed.
I'm wondering this as well. I think there's a thread here at IC where Sam discusses it. Would be nice to post a link Sam