The way I do this is to run my chowmix substrate in 8" netpot bucket lids over rdwc water. The rdwc water is pumped onto the coco as a top feed, say 20 seconds every 3 hours during the day. This both waters and charges the substrate with nutrients and holds its pH at the same value as the rdwc water.
Add your organic soilbuilders to the top of the substrate so they get watered in. Chowmix in particular is a great choice for this, as the bennies love both the crevices in hydroton and the coco in the spaces between the stones.
The benefits continue as that water drizzles down through the chowmix, down the roots and back to the rdwc below. First that water gets filtered; any solids, pythium rot, algae or whatnot gets beached and filtered out. Then, bennies and the materials they create also wash down into the rdwc, benefiting roots beneath. Those bennies also compete against any rot, stopping it in its tracks long before it gets a chance to do nasty things.
Bottom line? Growth rates as fast as any other system I've ever seen- aeroponics included- and pH stability undreamed of by pure rdwc users, plus a degree of robustness in operation I never got even from soil. Once, I ran the system all but completely dry- usually the ultimate dwc disaster, right? The plants? They didn't care!