could anyone tell me how to reveg a plant after harvest,,,ive read some on f.a.q on it,,,the only bit i was unsure about was the part what said "cut the plant down so there are several growth tips or buds left before reveging" does this mean leave several nodes with branches sticking out??? if so does it matter how long the branches have to be??? do you leave a few buds on them or??? any information would be appreciated thanks.....