Northern Light x Big Bud autoflower

22 04 2020 Buds are ripening fast and covering themselves with delicious trichomes, at the bare eye some of them look frosty. I'm guessing that in a few weeks, say 4 +/- 1 weeks , she'll be ready (btw, I never had a keen eye for working out harvest time). I had pinched the top of some buds and I see a difference in the shape and fattening of those that I pinched, compared against those that I didn't. I added some pictures where one can see that and judge from him/herself, pinching bud at first hurts but it is rewarding if one does it at a proper time. 24 04 started fertilization with added PO4. The plan is to use PK boost for two weeks, every other day with fertigations.