ffwp,
Sorry your thread turned into a shit flinging show.
Those are nice looking plants.
Flushing is a very controversial topic, and whenever it is brought up, there will never be agreement.
I personally opt for a fade instead of a flush. I grow in hydro and can watch the uptake of PPM reduce as I near the end of the grow cycle.
When the plant tells me she doesn't need that high of a solution of nutrients, I lower the PPM.
This is just my personal opinion!!!
I believe that if the proper about of nutrients are given during the duration of the grow, then there is no need to flush. However, if the plants have been overfed their entire lives, then yes, a flush may be beneficial.
I would respectfully suggest that you do a bit of studying on the topic, and make your own call.
You will never get a straight answer to your question.
You grow your grow!
Cheers,
WillieP