Thing is the pics above of the sweet tart flushing growth, just happens to be the time of year when every other mango tree in FL is flushing growth with or without ormus. Referring to npk fertilizers in a negative light as "chemicals" but in rawest form are just elements like the elemental make up of "ormus" does a disservice.
If you wanted to test the hypothesis that ormus provides maybe faster/robust growth during flushing season vs conventional fertilizer run your own randomized blinded study with 4 trees, it would be small "n" and have a family member prepare ormus and conventional fert and apply to trees while you record and track the results not aware which trees are getting what nutrients, then after the season compare the results and ask the family memeber which trees got what. Caveat would be the 4 trees would have to be same cultivar as diff cultivars have diff vigor.
-joep450