Im always open to facts, but hesitant on theorys...
As are most experienced growers.
The newbies however, that's a different story.
Didn't you hear about the theory on putting juice in your reservoir to improve taste and trichome production?
To me, these kinds of theories go along side the theories people put out saying leaching or flushing improves taste, trichome production and envigors plant growth.
All serious growers do experiments, and all I know have come to the same conclusions, doing side by side experiments, leaching is only good for removing mineral buildup or correcting reservoir errors.
I recently did an experiment with leaching on my G13 x Haze plants (I had 3).
1 was given regular nutrient rich water, no leaching, no special remedies.
1 was given pure RO water for the last 13 days.
1 was given a lowered EC solution (less nutrients).
All were dried and cured in the same room, in completely similar conditions, with the same glasses.
There was no difference in taste, colour, odour, harshness or high.
I had 4 people testing the weed afterwards (close friends).
This is the 4th time I've done this experiment over many years, not once has there been any difference in the final product.
Neither have outsiders with zero growing experience been able to tell any difference.
Since people believe so much bullshit these days however, without any rational or logical arguments to its merit, it doesn't surprise me how many people believe in leaching.
The same questions are posed 10 times each week and it'll never stop.