I can't believe the word "flush" caused all this. I've been reading all these post while sitting in my botany class at school. Here's what I will do:
This grow is going to get plain water for the last water only.
For my next grow I will plant 10 seeds of the same strain. From there I will pick out the best lady, clone her, and grow six plants from there. I will flush one 2 weeks prior, one 10 days prior, one 7 days prior, one 3 days prior and two without a flush. I will commence tests on yield, flavor, aroma, and burn quality. We will have answers from there.