Hi dude, Here's a couple of video's on 'Lolli-popping' they should help

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[video]http://youtu.be/mHQ7nIIHayo[/video]
[video]http://youtu.be/Arr94XiKokM[/video]
This is another good idea you could use to get a bigger yield

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[video]http://youtu.be/jxtp-4GAqOM[/video]
Hope that helps man! .. I know you want to Flower asap

lol, I really wish you'd wait until they are between 15" and 18" tall, after they have been lolli-popped, the bud sites at the top need to be pretty big, the bigger and stronger the bud-sites, the bigger and heavier etc the buds will be
Also note: If you tie down you plants stems/branches you wont have to worry about grow height! As you could train the branches to your preferred height
I think what with powerful Led Panals and Large DWC pots + Top Class nuits, it would be a shame to Flower just yet.. when you could get them trained and strengthened up to 18". Then when you put them into Flower you'll be amazed at the size and quantity of the buds you get I'll try n find some pics of plants put into Flower at 12" and plants put into Flower at 18" this way you will be able to see whats achievable etc.. Your cab is truly worthy of some big voluptuous ladies, and would be super cool to use your grow enviroment to its fullest potential

... Especially given its your 1st grow, and start as you mean to go on etc etc..
The difference in yield can be anything up to a few oZ difference for each of the 4 Flowering plants, purely by letting them grow a few more inches, and allowing the branches to strengthen etc,,
And when you take into consideration your overall dry weight will be roughly 75% less than your wet weight.. I'd get the biggest and most buds you possible can (by Vegging longer - 15 - 18") first then you know full well you'll be very happy with the end dry weight, THC count and bud form.
Hope this is helpful to you, and you trust what I say when I say wait a little longer

- STELTHY
