That lines up with my experience too. I do feed some (gasp) synthetics at transition (and flower), where Veg is almost exclusively organic feed. With the clones also, in addition to the nutes, the size of the pot, and the structure of the soil also matters hugely upon the cultivar, to be able to water in on a schedule that will allow you get the most from it. Many of these adjustments have some push-pull elements to them - Oxygen ratios go up with structure, but so does the need for watering.
Custom soil for ECSD is currently higher mineral, higher calcium, higher magnesium, higher N, standard K, standard P, higher porosity, smaller pot/soil. If I have it, I'll use Azos too to fix N as she's got a hunger for it up to 30 days in flower. She'll want more K, but it's better to control with adds imo. After 30 days flower, she'll want more P/K so I'll taper N and ramp P/K. It sounds like a lot of attention, but it's really just slight tweaks on the standard recipe of soil/coco/perlite/mineral, and my feeds go in almost as usual. Not too bad for a cut that is acknowledged to be among the hardest to grow successfully. Medium is as important as environment imo.
In the end, the slight synth feeds have made sure deficiencies didn't limit production of oils and terps in the plants, where feeding non-ionic organics left them flatter. Effect, smell, flavor & potency all improved with the synths versus without - on the clones. Seeds as a whole are not nearly as hungry, and I don't feed them the same. If I can find a 100% organic way that isn't wasteful (huge pots) to get the clones finished right I would try it. So far I'm still working on it, and it's been a couple of years now.
