First timer grow. Can i early harvest a little bit ?

Hello to all,
I have been reading and reading this forum, collecting info on this and that, much respect for all the help you provide.
Well, i need your opinions on something bothering me.
As the title states this is my first grow attempt, my "girl" is at 5th week of flowering (switched the clock at 26th Feb) under 120watt LED (Blue, Red, Orange spectrum). I think she is doing well but of course any suggestions opinions are welcome.
I am using Biobizz organic grow and organic bloom, in 2/3 of the suggested (by the manufacturer) dosage.
Now i have read that it is ok to take an early sample of the plant in order to smoke a bit. What do you think ?
Also i have read that it is good to flush your plants and leave them dry their soil for a bit so as the smoke would be better.
So can i flush her, leave her be for a week or so (it takes her about 5 days to drain all the moisture from the pot), cut the top cola and then water her again (with nutrients) to continue flowering ?
If so, what dossage would you suggest after the cutting ? Sould i continue at the dossage before the cut ? should i sligthly increase the dossage to the recommented?
I am thinking of doing this, because i guess it can help the plant to produce more at the middle buds which are flowering.
Strain is K.O.Kush Vs Jackberry of Sannies shop, as frebie which he states finnishes at 7-8 weeks.
Thank you for any help/suggestions on this.
P.s. She is about 22 inches

I will answer of course all of replies

no..its not ok to take buds early. it stresses the plant. with the L.E.Ds id think it'll take about 9-10 weeks to be ready to harvest..but keep an eye on things. Ive heard of people taking the top cola early but i would think the stress of removing it would stunt any further growth of the lower buds.jus what i think never tried it myself... id try bending the top cola over with a piece of fishing line to get those lower branches some more light. you jus hook the line to the top cola and hook the other end to the pot the plants growing in. you could also try adding come CLF lights on the sides.

Thanks for the reply, appreciate it .
So what do you think , is she doing ok, from what you see at the pictures ?

oh yeah!..a little yellowing in the lower leafs....not enuff light... whats ur nutes? may want to throw in somthin with some nitrogen in it. as plants starve for N at half way threw flower.

I am using Biobizz organic Grow and Bloom at
1ml/lit biobizz Grow NPK 4.0 - 3.0 - 6.0 (recomended dosage)
1ml/lit Biobizz Bloom NPK 2.0 - 6.0 - 3.5 (half the recomended dosage)
Here is the chart http://www.u-grow.com/support/biobizz-growschedule.pdf
Rep Added

thanks yo..nutes are good. get a couple of those CLFs in there if u can...

Any more suggestions ?

There is no point to taking buds early. In my opinion, there is no point to smoking them until they have been properly dried and cured for at least a week. If you take buds early, it is not going to be close to its full potential high, it will taste green and give you a headache, and you will start stressing about the quality of your grow. The hardest part is resisting the temptation and waiting until the time is right.