Yo, what up man. Shits looking good
. Have you thought about giving it just a bit more nutes? the bottom leaves store nitrogen, and are using all of them, thats usually why they die this way. Just a thought.
Top that bitch if you are thinking about it. Just remember to cut as low as possible on your top, or else it will only shoot up in one spot instead of two lol happened to me the first two times i tried it. topping it younger is better IMO so that the stems can get harder and support the buds and branch out low. Dude and after you top it, new leaves and shoots shoot out of all of the nodes, its badass. and if you want to get crazy, cut below the highest branches so you have a mini looking plant and clone it. even if you dont need it, you will top it correctly and have another one
Just read a couple threads on cloning in soil.
Oh ps, had the same rootbound problem so I know what thats like... freaked you the F out for a bit huh? lol
Happy growing dude! Im in Tally btw