Am i on track?

i think these are 4 northern lights fifth week of flowering or day 39
in soil 11 litre pots using ionics bloom npk 4 6 8 , sensi mag/cal npk 2 0 0 (got a bit of red stem ) and canna pk 13/14
LST
my lights are in the pic below
left 150w hps
middle 125w cfl flowering
right 150w mh

back left looby, front left glory, back right switch and front right trinity

here are the single plant shots


glory




looby




switch




trinity




they have started to produce trics and about 5% of the hairs have turned redish i have attached some close ups at the bottom

i think i have about 3-4 weeks left what do you think?
there is more info in my journal linked in my signature and more pics in my gallery

i say like 4-5 weeks for sure
mine too are showing redish hair and begining trichomes
i still 1 month and maybe 1 week all depend on the trichome color

good lookin so far.....impatience is your bigest enemy @ this point Cheers!!!

4 or 5 weeks thats ok i am in no hurry
anything over an oz off these 4 plants i will be happy with but i think i will get more
this is my first grow and i am happy to have got this far.

i am planning my next grow bigger room more light and i am going to use dwc (bubbler) hydroponics i have seen very good results from this system and i like the idea of the amount of control in hydroponics so the next 4-5 weeks will be good to get the bits i need for that.

what % of hairs should be red before i cut there nutes for the last 2 weeks
or if you are counting trics that have gone amber what % should be amber ?

i have read quite alot of info but there are a lot of different views on this i would like the advice of some one who has grow northern lights or know some thing about this strain

i would like to thank every one from riu for there help and support