I've also noticed on my northern lights auto, the very top of the middle leaf on most fan leaves have a burnt edge look to em. Is this due to overfeeding nutrients? What's everyone else's opinion? Ty very much in advance. The rest of the plant overall looks really good.
If it's just one or two leaves, you're fine. Don't freak out and change anything yet!
If your pH, ppms, light, is good and you don't have a fan blowing directly on it, I think you're fine. Good luck!