Dog: Yeah, those are the numbers that I got too. You're probably right about it being shy of a full 12 hours SID. I'm going to keep it where it's at right now to see how the plants respond. Since it's right at the edge (or seems to be, from the estimates) it should be a good test to see if the plant response falls more on one side (vegging) or the other (flowering) which should tell us how close the estimates are. :thumbsup: