Started the week with some moderate defol, taking 2-3 dozen larger fans that were clogging up airflow through the middle and blocking light from bud sites around the edge. Applied a bit more wire to open up the central four branches. She started showing a weird and rather dramatic color change with very dark middles and almost neon tips, but after some questioning and research I'm chalking that up to simply dramatic coloring, lucky me. I hope. But I also raised the light to 22" above canopy, from 14. Pushing the bloom nutes more, she's started the smallest little nuteburned tips but some of the tips I'm seeing aren't brown at all - they're blushing red, and quite supple. She's been rather weird and dramatic from every turn, I'm quite glad I didn't try this as my very first grow but I'm really enjoying this journey.
Two leaves on my cdlc are developing weird scuffed looking spots that are getting worse in those two leaves, but not on the rest of the plant... yet. Scant FF nutes, purecrop 1 for ipm, temps between 83 and 68 under LED, humidity between 50-65.
FF big bloom would not burn your plant like this. It looks more like a localized problem. A one off kind of thing. More like a burn from moisture than nutrients.
Hope this helps.