Does this also make better tasting tomatoes w/flushing? Would those have more vitamins as well in a lab test?
I can often tell when the celery at grocery stores was nuted too strongly... yes. Cucumbers is another veggie that I've noticed it in occasionally. Definitely notice the difference in my own gardens.
More vitamins? No, just additional non-used nutes.
I use Maxibloom or GH Flora, in lucas ratio/concentrations so I don't dump my res the entire run. Saves a lot of water and a bit of nutes. I basically 'fade' as the term goes, topping off with plain water the last 2-3 weeks... unless using a medium that retains nutes. Mediums I'll use plain water the last 2-3 weeks, depending. (Edit: When the nutes you're using are 'balanced' for what cannabis will normally eat... it's more difficult to burn plants, they'll uptake more and they don't leave elements behind to build up to toxic level. Main reason nute companies advise dumping their imbalanced nute profiles every 2 weeks. Standard dogma now.)
Makes a serious difference. Again... for good or ill, I can taste, smell and feel stuff that 90% of the people I come in contact are oblivious to. So... most of the folks around you might not notice as much of a difference. Understandable.
Stay Safe!
Stay Safe!