I want to thank everyone for their help and advise.

I just flushed with 7 gallons of water each. They are in 2 gallon pots. After 20 hours the 2 plants that turned yellow are already visibly recovering. Their leaf veins have a new green color which is spreading! Even in the yellowest of leaves! In the leaves with lesions, the lesions have stopped growing and have turned light brown. They used to grow with a dark color until consuming the leaf. This is good! Pics below???.

I??m afraid to use any fertilizer with this hot soil. Maybe just Sweet from now on.

I still have yet to hear anyone??s guess on the nute deficiency/excess I am experiencing. Has anyone ever seen this type of nute burn? The lesions are atypical and occurred well before I used any nutrients. Has anyone ever seen this kind of nute burn???