Of course that any smoker with experience should be able to tell the difference between organically and synthetically grown weed... but it's not a rule and it can only be tested with so called double blind to be valid. Otherwise what you're saying is anecdotal and and cannot be treated as a proof unfortunately. That's the problem with personal experience... it's personal, but cannot be used to form a general conclusion.
As I wrote, you can't go wrong with giving pure water, but it doesn't flush the bud and it doesn't flush the soil! The only thing you do by watering for the last few weeks you lower the concentration of nutes, but plant still takes them from the soil!
youre absolutely right! which is why i had my friend test them out after I did. I knew which bud was which, but he did not. it doesnt flush the plant totally, but at least it wont have AS much. Just saying that IF youre bound to using nutes, then the two wk water flush is necessary.