@BigSm0 -- The key to them all is Transport-- that's the magic penetrant/carrier that brings all the other goodies into the leaf proper,... Watts and Rev technically should be paired, as the first is the photosynthetic enhancer, and the second is the
right now nute boost to help make the most of that "turbo boosting", until the plants internal resources can get caught up... Sure, technically one could just use Rev (and Transport) as a very light feed.. but why?

Otherwise, ATAK isn't necessary unless you have an issue with vermins/fungals,... And you saw my thread on Transport use with a micronute,... it's very diverse in applications, pest control included according to Dinesh... Transport can help penetrate the bug's outer protective layers as well! .... sounds like you're pummeling them with photons mate! Mg is the core atom in the chlorophyll molecule, so either you're exceeding supply, or damaging the molecule because of the fierce light, even if there';s no actual burning,.. beyond a certain point, more is not better, other limiting factors can come in play, or it's just too much energy to keep things stable and functioning,... to date, I have no specific info about the connection between LED/COB and increased Ca-Mg needs, but there's definitely something going on there,... Strain and even pheno' variation are factors in light tolerance as well,...

Bust out the diffusers 'Sm0!
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Fett'6, I'm curious too about that! I'm sure it's been tested on most if not all forms of lighting,...
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BII-- some of your questions are answered above I believe,... Overgrow is an all-in-one ready to use product that combines them all... Dinesh recommends reducing any other product by 1/2 when treating with Transport.. sure, Ca-Mg or epsoms will be fine to use with it; epsoms for foliar are about1 tsp/gal usually, so I'd reduce that by about 1/2... grow method doesn't matter for application rates,...