The nuteburn def stopped after flushing it for the few days but it still looks like it has a slight def. Could it possibly be a slight magnesium problem? Ive heard from alot of lucas users that they need to add a little epsom salt from time to time to give it a little mag. boost..
I don't know the ratio of calcium to magnesium that is desirable but I think your plants look pretty good. You're at day 45 now? You got 2 weeks left and instead of trying to diagnose an issue this late, personally I'd just feed them on the lighter side until the end and take good notes for your next run with the lucas formula.
Word thanks for your input ChiTown. I actually had an idea that it might be a mag. def. because ive heard of alot of users claim the lucas formula doesnt provide enough mag. for certain strains, i added some epsom salt and it seem's to have started to fix it. Ill send you a pm of some updated pics tonight..you know what i do think it now is a mag. def. and not a calcium like i first thought.. it was hard to tell cuzz you got more then one problem going on there, but if you look at the leaves, not only are they burnt, but the leaves starting to go yellow while the veins are still green= mag. def.....