looks good, a thought; maybe the droopy ness and the yellow leaves are related. I would think about transplanting at this time to bigger pots. everything looks good, assuming they have the correct nutes then maybe they just need more room.
Also they are big, in the end they double size if not way more so if your flowering room is big then go for it but if not start thinking about the space caseu when you put them into flowering the roots begein to stop growing and the buds and the plant start to grow more. a plant that big needs a big pot maybe 3 gallon.