Looks good to me. What is that method referred as. I love the auto water and drain table. I'm a soil grower and get tired of all the hand watering. I'm looking to do something like you have in the near future.
Just an observation but you might think about filling your pots up with more soil. When I zoom in on your leaves it looks suspect for mites. I suggest getting a jewelers loupe and checking your leaves real good. Also I wouldnt bother with run off just adjust the ph going in. Good looking plants.
I've had this discussion in the past and contacted three reputable breeders and everyone stated the same thing. The flowering count starts when you flip to 12/12. With that being said the plant will tell you when it's ready and that is subjective depending on how ripe you like your trichomes...
What I'm talking about would have nothing to do with the powdery mildew if that's what it is. But it does look like you could have some mites on your leaves. Do you have loupe you could examine them with. Could be nothing my eyes are old and tired. Lol
Yes. They don't look like trichomes so I don't understand the early flower. It's hard to tell in the photo but it looks suspect and worth taking a look at.
If you don't see any deficiencies than you don't need it. Generally most tap and well water have adequate amounts for the plant. Lot of people are quick to jump to the cal mag cure all when there problem is actually ph fluctuations.