I have started flushing with pH-adjusted Flawless Finish solution, expecting to harvest somewhere around the end of this week, although I will continue monitoring pistils and trichs.
Upd: Added back 50% base nutrients and some flowering additives after researching some of the first responses to my flushing question. I learn every day. Even that which was scientifically proven true one day, might be even more scientifically proven absolutely false some time later (not related to flushing specifically).
Thank you kings!
Upd 2: Okay okay I cooked her with some cosmic rays or whatever those Chinese quantum bars emit — purple rays, I'll call it — that's on me. Turned them 30% down to see what's up. Light burn was not on my mind, because otherwise the leaves were not really curving that much, considering that this is 3 weeks overdue wrt advertised. Sorry about that, did not pay enough attention.