Plants look great. No more food, and actually you can stop feeding at least the 2 weeks before harvest. They have enough in their roots and leaves to carry them for a month, easy. I cut leaves above buds ( did it today, and tomorrow will have dark green leaves around the bud, instead of that shit yellow leave from a buried bud), and at each bud site, I remove 1 side leaf from the pair found there. I allow for that bud to get it's shit from that one leaf left. I cut off/ or have cut of all water/fan leaves now, so you have less cleanup when you get down to business. A little at a time. I would say optimum cut, 1 week from now. The plant once cut, will continue to grow for another week, before it realizes that it is pipe bound. Cut back on light for the last week, I would recommend 4 hours on, the rest in the dark. Nice job, don't sweat the leaves.