Foxtails? Pic

I’m just now learning this is foxtailing. I’ve read about it but not had it on my (few over the years) plants. I went to bloom and overdrive a week ago. The Calyxes look like they still need to open up. It’s 93 days. Auto. So two questions. Is the overdrive making it foxtail? Temps in the room climbed from 74f to 80f constistently over the past month(A/C issue). Keeping fans to keep the room at 80. They have a 4 hours lights out also. Second question. Will those calyxes open up and fill in the space created by foxtialing? Or loose density still?

Could be genetic foxtailing.

Or...

The leaves look pretty dark, maybe too much N could be the culprit .

Drop the N, not totally, and ride it out .