I had never really heard of burst trichs myself until recently, someone gave me advice after me asking about this same plant a few days back.
I have also never had one keel over but I haven't had that many runs. I am in hydro but still wouldn't exactly expect it unless there were other problems going on, which for me there were. I had a lot of problems with that run. Namely, heat, root rot, and poor lighting for flower. I have recently fought those off fairly successfully.
I am seeing a little calyx swell on the ak48 but no receding hairs yet, not sure what that looks like really. and no swell, that is my biggest worry. I am really hoping for an end of run weight gain, I like the time involved so far.
My other girl that is way farther along is swollen fat AF and looking good, but no cloudy trichs, no brown hairs, maybe a little calyx swell, but not as noticeable as the ak48
do plants normally start showing signs of nute deficiencies as they finish? I try to start a flush a couple weeks out and have caused that before, but I have plants that are getting fed heavily now that are showing signs of what I think is a cal-mag deficiency.