I personally allow my plants to go through the stretch during the first 2weeks of flowering and then i clean everything off from around half way down the plant to allow more bud sites in the sweet spot of the light.
This i have learned from reading the URBAN GARDEN MAGAZINE it is called cleaning up the plant.
I also top after week2 of veg for 4 main colas and 4 secondary colas.
http://www.rollitup.org/attachments/...t-ladies-4.jpg this is around week 3 or 4 of flowering you can see the 8 branches shooting to find the light
http://www.rollitup.org/attachments/...t-ladies-5.jpg this is around week 7 of flowering and you can see the 4 main colas and the secondaries around the outside.
You can see the clean up i did in the first pic.
However i would mention that this was my first grow so i think i had a little bit of beginners luck lol.
I also realise now that i should have been feeding her some N here and there to help stop the yellowing.
Hope this helps you understand what i do to mine.