i'd put the saggy leaves down to the amount of rain we've had lately,though they'll get over it,mine did,i've had to grow my full grow outside because i hadn't time to tend it,and it's doing amazing even though some share pots with fast growing heavy feeders,some are way over 2 foot tall and still in veg,it ace
i've also found it hard to over nute in all this rain
btw your plants look great man