Hi, It oes not Matter if you use Clones or seeds, In flower ( even in the Late) the Plants got a big need for P and K.... But i dont want to say... yaah go for it add more Nutes...... its the opposite....Your Handling with the Nutes is exemplary... its to see on your other grows. i wont change anything in a good working System... just do it like you always do.. in my opinion to much fertilisers are used and then tossed away, poisoning our water and the envoirement