The plant seems to have recovered fairly quickly from the nutrient deficiency at least in my humble opinion. Did some super cropping to try place the potential bud sites on the same level and remove the damaged leaves. Plant recovered quickly, the pictures are from the following day after the training.
Still some burn signs, but to me it seems they'll be overcome soon.
EDIT: The deficiency became worse. Tried flushing, the PH levels of the run off were 6.75, PPM level was ~290PPM and EC was 590.
@DreamIT, thx m8, almost burned the poor girl, had to flush to get things back on track. Waiting few days before I trim it a bit and get rid of the yellowish leaves. :) Thx for your support good man ! 👊😇
@ILoVethisPlanT, Thanks, I fully understand that, just your proposal makes sense to me. I am also thinking of adding Cal-mag to try solve this equation :)
@ILoVethisPlanT, Many thanks ! I'll do so. The soil is getting dry today, tomorrow I think will be doing what you suggested. I can share the outcome if you're curious :) Thanks a lot for sharing your thoughts and experience !