I wouldn't judge anything by the older leaves tbh, watch the new ones. All the minor corrected issues your plants went thru, mainly the vpd to rootball ratio can mimic almost any deficiency because your plant was forced to run so hard it ended up starving because it couldnt eat fast enough to feed itself for the pace it was forced to maintain. If you see those signs show up in an unscarred leaf thats the truth talking. That to me actually looks like a hungry plant starting to consume itself. It wants carbon and probably gonna need protein too real fast. You will have all the minerals you need between your soil and that top dressing, but stretch is almost done so its carbon time and carbon doesn't burn without protein so make a good veg tea, yeah thats right veg, and if its in a 5 gal bucket add 4 tablespoons of BSM and your protein. Always make kelp meal one of your proteins and whatever else you want like a smidge of alfalfa,feather meal, whatever your shelf has or your recipe calls for, and brew it with airstones for 24 hours. Then dump in some ewc to explode the microlife to digest all the proteins while chasing the BSM carbon for another 18-24 hours. Put a mat or a towel under the bucket, it may get foamy. Thats normal. I brew mine in the bath tub(well in a bucket in the bathtub lolol). Then cut it 50/50 with your water, preferrably all room temp, and feed generously, then water on top gently until runoff so the carbon and microbes get everywhere in your pot. This is a rescue operation all the way to finish now because stretch used more carbon than your small pots had in them. The protein in your soil is low too but not out or you would see a huge nitro deficiency so stay ahead. The high BSM in this tea is because your empty so the extra tablespoon ensures the microbes in the bucket cant eat it all and the soil gets some. Then after that make every tea with 3 tablespoons per 5gal pail and bend the tea more towards flower tea by adding soft rock phosphate gently, or guano, or whatever flower power you want for phosphorus you use ( ratio that down as needed. 1 gal will turn into 2 when you cut it), and always cut it please. They are capable of eating on their own so dont force feed them. Not yet. Later in flower maybe.
Thats a ramble sorry so point form, brew a good veg tea with microbes and 1/3 extra BSM. Cut it 50/50 with H20. Pour it in fairly generously as its cut, and water to run-off.
I have been thru this many times, I science every grow in Gee's tent of Torture. Here is a tip I figured out that works for me when its tea time, but it does accelerate the effects a bit so leaf-tip burn is real. Dont worry about it. The tip is fully root drench every pot and allow it to drain for an hour. Then start the tea adding process. Then water to runoff, which isnt that much now but it pushes the tea in evenly as the soil is already pre-wetted 100%. I just notice better results on the pots I do this to when compared to the others that I didnt drench is all. Its alot of messy drippy work so I move my plants into the bath tub and do everything there until the tea is in and the pots stop dripping. I hate trays, I dont use them, sooner or later they bite me in the butt, but if your diligent to not allow standing water find a way you like. Its alot of work for a tea but things have evolved now, in 10 gal pots my plants get 1 microbe loaded veg tea at each up-potting and thats it. In 2 gal pots you need a lot of teas. Build a good habit that works for you because you will need a few more food teas ahead. Probably only this one with ewc tho. Food only teas only need 24 hours to bubble. If you want a good read go back to the 1st post I made in here and read all 10,000,000,000 words in order and you will see a path forming. Synergy will start to lead you. Gonna be fun Dude! This is the hard way where you learn things, but its totally do-able in small pots. Also the small pots will soon need water every day so every 2nd water now, or 3rd for now but once its every day every 2nd water should and really really needs to be fish fert at about 1.5ml/litre. There are 2 kinds of life in your soil, Microbes and fungii. Fish is for fungii. Fungii actually play a more important role in organics than microbes but you never really hear about fungii other than "Use Myco" and thats because once its established all it needs is fish fert, or any fungii food but fish fert is top shelf and always works and is almost free. Buy the good stuff, 1.5ml per litre will literally last years. The reason fungii is actually more important is because microbes can't come to your plant but fungii attaches to your root and can easily go to your microbes. It uses the sugar the plant sends down to bribe the microbes for nutrients, and can even ask for specific ones if the plant requests, and brings those nutrients to the plant. It keeps some sugar as its own to eat to get carbon because it lives in the dark so cant photosynth its own. Ever hear the term "He who has the most sugar wins"? Go back and read all my posts. Get ready. Wicked cool fun ahead. You're about to boldly go where no ( well ok actually alot of, but still only a small percentage) have gone before. Or...., and this is a totally viable option, go buy a good easy to use highly reputable, sponsored so you get a discount line of nutes. But theres no fun in that, just a bunch of weed for sure. Myself bad grows go in the worm farm as I am a purist who just cant buy nutes to even try that, but.... I do have a multii year supply
on hand of well aged weed so I can afford the purist outlook. You got this man just get ready...It cannabis...Its unstoppable