Foxtails, photos included

I posted a similar inquiry for help a few days ago. I added photos this time to hopefully motivate some insight. The first two photos are of the troubled og Kush. The foxtails started forming in early week 6. The temperatures in the room range from 80 in the day to 60 at night. I have my thermostat "outdoor reader" directly on top of the main flower of the worst foxtail. The temperature gets to 80F at this point. Therefore, I now know that there is no hotspot below this hood that is causing this issue. The third photo is a different strain in the same room. It is meant to show how dense the flowers of a different strain are in the same environment. Any ideas what's going on with the OG Kush? Thanks so much. Cheers.

Do a little research into the cause of your leaf edges curling on that plant and you may find your answer. Are you measuring temperature at the tops of the plants?

Some strains are just more prone to foxtail, I'm not sure if that is one of them.

Anything else?

I just thinks it strain dependent (mostly with sativas though) I would be more concerned also with the burrito fold heat stress or mag def.

Had the same issue with 1 strain, done ass load of research and found its normal with some sativas. Although mine did start forming out of denser bud, then filled out at the end.