Herbies Gorilla Glue #4 Auto

Day 50 - Fed RO PH'd water, 10ml calmag, 15ml grow big, 15ml tiger bloom, repositioned LST tie-downs. Day 51 - Statrted to notice spots on older leaves and curling on the top ones, the majority of the other leaves still look really good and healthy except for the brown tips. No maintenance but I did research on what I'm seeing and how to fix it. The curling was easy to try and diagnose, I moved the light up higher 13"-14" away from the top canopy just to rule that out and I hope doing that might also help control the temp and humidity. I suspect nitrogen abundance, with the brown tips and I'm pretty sure the spots are from a calcium deficiency since it's only on the oldest leaves. Day 52 - Gave her a light trim then came to find out that she's actually over-neutrified. Therefore, planning on not watering or feeding since she's so close to harvest. Going to double flush 3x, with ice for the last one she gets. Day 53 - She's looking so good, I'm relieved I didn't burn to death her with nutes! Just trimmed off what I thought looked to be less than helpful foliage because I want all of her energy going to producing bigger buds and more trichomes! Day 54 - Removed her bandage today, I felt like it should be strong enough to stand on it's own. I got rid of more leaves that were overtly green and burnt at the tips, except for the ones on her top cola. The damage is done and I can't fix it. Although, I wish I could have flushed her sooner. At least I know what to look for now... 😑 Day 55 - Double flushed, used about 2.5-3gal RO, PH'd to around 6.5(ish). Measured PH after, coming out to around 6.8-7 and around 1280-1300 PPM. Day 56 - Just monitoring tent environment (Temp, RH, VPD, etc), planning on waiting till day 61 for next flush, no water/nutes till then.