Rusty and crispy leaves?

If your numbers are accurate on the light height then this is definitely a light burn/heat stress issue dude. If the rest of the numbers are accurate, this is the only potential reason. Those leaves are crispy as hell and burnt to shit from that SF2000. If you can raise that light another 8" you should be able to mitigate any further burn. You'll need to for sure because you've still got a good half of the flowering cycle to go. Don't think there will be any overt impact to your plant during the rest of flower but the current leaf damage will obviously remain. ....and having now read your weekly comment and understanding that moving the light up isn't an option - my best advice would be to start bending over some of the taller colas with HST - about 8" down on each one where you can. If bud weight will already be a problem then yo-yo the now lower tops to keep em supported horizontally. You still have enough time to do this and it may ultimately not prevent more of the light burn that you're seeing to the leaves. It will however, at least keep the buds themselves from getting torched over the next 3-4 weeks even if the leaves do end up suffering. If it's any consolation, your plant growing too big for the grow space (IMO) is always the best kinda problem to have😉. Good luck with it dude👍