First concerning grow issue / Leaf yellowing / Plant otherwise super healthy (Temp 24-27C) / Any thoughts on what's going on?

The lower leaves going yellow at this stage is pretty normal and not really an issue, being obscured down low and not receiving enough light to keep the chlorophyll happy is the main reason for the yellowing. I would suggest your plant is suffering from nutrient excess, as evident by the super dark green leaves and this may explain the droopy leaves, combined perhaps with slightly too much water, but half a litre per plant is hardly excessive. You seem to be feeding with half strength x 3 types of nutrients, which means you are giving them a one and a half strength solution. If using 3 types of fertilizer, you should be giving one third strength of each. - 3 x one third strength = full strength. I would also be dropping the molasses, it really doesn't do anything for your plants and could also be doing more harm than good, especially if given often. Try and only water when the top 2-3cm are dry, but water deeply, to run off, your soil should be moist from edge to edge and top to bottom after watering. A small amount of water and given often doesn't really keep the whole pot moist and not watering to run off can cause nutrient/fertilizer salts to build up in the soil, causing soil toxicity - often drooping leaves are a symptom of this. So, all in all, ease back on the fertilizer strength, water deeply to run off and water only when the top 2-3 cms are dry and your plant should be much happier. Hope this helps,........ Organoman.

1 hr after watering and the leaves are dropping...must be overwatering, right? I’ll wait 4 days for the pot to dry out more thoroughly, then water w/ less than 1/2L. Any other thoughts?