I think you will be ok. I think mj plants start to cannibalize their leaves when they get stressed from something. I’m having a little bit of issues running coco for my mother plants in my veg room right now due to light stress and under watering. I’ve noticed with coco, it’s almost impossible to over water but what happens when it dries out too much and you hit em again with nutes, it stacks and builds up causing major Ph spikes. I’m going to set up a pump and timer for my moms and stop the hand watering. I’m also in week 7 in my flower room running hps DEs and a few plants stretched too close to the lights and the fan leaves are getting torched rn but the buds are nice and dense and super frosty. Also just some food for thought, sometimes less is more. I only run a 3 part bast, cal mag, pyro k, bud xl and a little bit bud in the beginning, some great white powder, and I run clean roots every watering. You can kinda see in the pic , my tallest tops have fried leaves but the buds are absolutely fine.

Exactly, when you let it dry you get lockout you need to keep Coco 60-80% hydrated at most times. Weird stuff but if you keep the same genes you can really hone your nutes to perfection