Hey sofa, welcome to AFN! :smokebuds:
Lady is looking like she's taking to the computer space quite nicely!
Quick question: what have you been feeding your BH lady to give her magnesium? I think that what you were seeing before that you thought was a nute burn might actually have been the start of a magnesium deficiency. The ladies are magnesium hogs when they first go into full flowering. If you have been giving her a source of Mg, then the pH being out of whack could have been locking out the Mg. Just something to keep in mind now that your pH is back in range. If you don't have any in stock, I would get some Epsom salt to add to your arsenal. It can be used with soil feedings and also for foliar feeding to stop any Mg deficiencies in their tracks.
Looking forward to following along with the rest of your grow!

:smokebuds: