So plants got Mg problem but maybe bounced back got some color back but on the old leaves you can see what happend

Thats normal because It starting to mature... You Need to defoliate and thats It.. your plants are exelent my friend

If i recall the previous 2 questions, yes, this look like it is still trending better. As it gets lush again, you probably want to back off a bit before it goes the 'other' way, health-wise. In order to compensate for past deficiencies you are feeding more than it is using in order to get the canopy healthy again... once healthy that's "too much". If you have notes on how much you fed when the problem started... more than that, but less than what you've given lately -- again, only after the plant is as lush as you want it to be. Senescence also becomes a factor. Like wrinkles on old skin, as a plant nears death, it doesn't maintain itself as well as when younger. You look pretty close (a little ripening of lowers etc) and your canopy is fairly strong again. No worries. You can see good results from plants that look far, far worse, lol. Compared to 2-3 weeks ago, your plant looks fine.