I know mine often get ugly this late in flower but not dried out. Have you been checking ph and calibrating the ph equipment?I did a flush and then did a 40% nutes feeding. They did not seem to like that either. Lots of curling and drying of the leaves. Reduced the frequency of feedings per day but brought it back up as I havent seen any change or benefit. We are almost at week 8, considering taking what we have now before anything else drastic happens. Ill get in there with a microscope later and see what the trichomes look like