Well, it could be a matter of too little too late- but it makes me want to wonder about other variables. I guess the thing you need is a next good run, you need a benchmark to set your future tests against. I tend to trust Atomizer in that if he says a certain regimen works well, then if I replicate it I'd expect good results, and if not then I'd go through with a fine tooth comb and figure out if it were lighting, mist timings, overwatering, not enough fresh air, etc... Not to beat a dead horse, but I think you already mentioned you check your tester's readings against the calibration solution, so your ph/tds must be right. One thing I've learned, is that if you don't have a good root structure before going into flower, you're not gonna get a very good outcome, because it would seem the plant focuses all it's attention on the flowers and won't make much new root growth anymore. After I killed my roots just going into flower, the plant has stayed alive, but it's like petfloras in that all the roots are staying inside the tiny rockwool/soil puck now. I ended up with a 5 inch plant and a bud the size of a cottonball- lol... It's not really worth the nutes I spend on it. However, I kept it's sister in a 3"x3" pot filled with soil-and feed it with the res water, and that one is doing quite nice. I think the temps are cool enough now that I can start a full chamber of new seedlings. Prolly gonna do that in the next week or so. I'll take a couple cuttings and make them into mothers out of this batch. I still have to provision for mother lighting, because it's become painfully obvious that these plants here will go to flower immediately after rooting with these daylight hours.