What I did when my plants were 4 weeks I started to pull the top horizotal by shaping the plant like an S. then I pulled all the large branches out to the side almost horizontal so the secondary branches took off. Once they reached the edge of the pot and started growing up I cut the lines. I only topped by accident with my ties. But once the tops came off the top 3-4 branches(the mainstalk is horizontal remember to allow equal light) They took off. So I have 3-5 main colas now and lots of side colas. Very bushy plants, almost too bushy, I'm running out of floor space now, but don't regret it. I would spend hours tying each day, but I was also trying to slowly bend a tree trunk like stem so I had to do it gradual, otherwise I would have kinks, braches pulled down too much can split from the main stalk, and fine ties(like fishing line) can slice through. Even tiny nicks with that line would cause it to cleanly snap when pressure was pul on it. Next time I'll use yarn for sure. Kp said she would put a screw in the outside of the rim and just wrap it around. Sounds like alot less work.