What is going on here with my leaves??

Hey RIU, new grower here. I'm 12 days from my flip to 12/12... Really let the plants dry out this time in between watering hence the droop. Now I know when too dry is. My concern is the yellowing I am starting to get on the lower branches and off the main stem.

FFOF soil
last nute feeding was 1 gallon per plant RO water
1 tsp of cal-mag
2 tsp of Big Bloom
1.5 tsp of grow big
1.5 tsp of tiger bloom
and .125 of open sesame

I mix up two-gallon batches of nutes hence why my measurements look screwy.

I'm trying to slowly ramp up nutes... looks like I may have fallen behind.

What do you guys think?? Appreciate the help in advance

If the yellowing isnt traveling up your plant then dont worry about it, it happens. Now if it is a deficiency then add whatever it needs. But dont slowly start upping your nutes, just change them up a bit woth thw same mesurments,
Ita harder to fix a deficiency than a toxicity

Just that one fan leaf...I've really been tucking and folding them during the stretch... maybe I just fudged up that one leaf by bending too much.. but the bottom leaves that are yellowing fall off if you blow on em. Maybe that's just part of the flowering process... Everything up top and bud sites look great!

Oh i didnt put the two together. I read that you were gonna flip em in 12 days.. my bad haha.
Then yeah its apart of flowering, especially if your flipping the nutes to flower aswell, just make sure that your new growth doesnt do that

started giving them low doses of open sesame... heard that can cause some yellowing... all upper new growth looks good... she could just be shedding her non needed leaves.... I'll keep my eyes on her. Thanks for the help Dr!

Your welcome, my friend. If anything else pops up just post it up