If your using organics...what are you flushing?
Flushing came about from salt deposits left behind in your medium from salt based fertilizers.
Organics are well organic, your adding what they need to eat, if feeding to much your leaf tip will burn, telling you your giving then to much food.
I use molassas from the time I flower, every other fed/watering I do. Some strains I fed every time, some strains go every other...whatever the leaf tips show me.
I mix 1 TBLS BlackStrapMolassas, to a beaker of hot water and shake the hell out of it, then dump into my nute solution.
I personally dont think it changes the taste of my fav, but it sure helps to keep a good benificial bacteria colony in my medium...for very cheap!!
I see more molassas help in my soiless runs than my hydro runs.