Forgive me for pointing you in a totally opposite direction as the others, i feel you should read up horticulture studies/books ect on how to take care of soil when using organic amendments.
You don't want run-off or a heavy wet cycle & with well rooted containers you don't want a heavy dry cycle, might take you a run or two to get it all dialed in.
If they perk up after a watering, take a picture of the bottom fan leaves or remember what they look like, those same fan leaves will start to point down as the soil hits the dry side again.
If your feeding pH'ed solubles or starting with a fresh transplant, then yeah, you can let it dry up a bit more.
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