Any pointers?

Thry are in reveg mode. All other thing are irrelevant. Check "dark cycle interruption during cannabis flowering" on Google. You'll understand maybe ;)

Your ladies are looking great so far ! Just keep it up Like That. Maybe consider to use some CalMag as you are growing under LED lights… This Commonly causes mostly Magnesium defiency… Good Luck with those Beauties 🤞🏽🍀👊

I like your diy setup looks good!

I don't do pointers I do heavily biased, organic methods or nothing lol

Hi Mike😁 Your plants look great! Very vigorous and sturdy... Keep it up and you'll have a massive harvest... I'd try to bring the pH level down a bit (to 6.5). Fingers crossed and good luck!