Sorry I was talking about temp. I have never tried the virtical grow but after studying that and staking I've found the plants seem to yeild more with staking every single branch with zipties spreading it out making it as short as possible at 1212 switch or if the stems aren't too stiff try to wait a week or 2 into flower. If you support each cola they grow HUGE.
Oh sorry - my bad (english is not my native language).
Yes I agree, if you can support a cola in such a way that it will always stand in the same direction towards the light it'll grow stronger than these unsupported cola's that bend down once they achieve some weight.
It's my impression that Cannabis seems to "loose interest" in adjusting its fan-leaves (towards the light if the direction was varied) once it hits mid-to-late-flowering.
Actually I wanna try & combine alot of manipulation techniques in order to fill in the V-Scrog like: topping, super-cropping & monster-cropping & lollipopping. Not so sure about defoliation right now, some say the plant needs the big fanleaves to store sugar in them in order to grow during the night-phase, some say it's better if the budsites get direct light (I could bind some of the fanleaves behind the V-screen, but surely not all of them.)
Sorry for the offtopic but what do you think about this? I wanna do something extraordinairy like getting 2kg dry from 600W @ 1,44m^2 using the 3 sides of tent, some of the floor and perhabs even a bit of "the roof"...