I wouldn't want to have to fiddle with them every other day?
Hydro should be, and is EASY.
Autoflowers LOVE hydro.
Bubble Bucket, or a flood table is SOOO easy and the plants love it.
Fill up your rez with nutrient solution, set the PH, Set your timer to flood once an hour, check ph every other day, change nutrient solution once every 10 days and harvest bumper crops.
Hempy is by far not the ultimate form of Hydro. Not the simplest either. Takes far more work than Hydro should.
Before I would grow Hempy with perlite I'd just personally go with Coco where I could make good use of bennies and teas. Coco is super forgiving also.
I know Hempy works great, but for yield I'd go with some bubble buckets, or a small flood table.
Just my .02
Peace.
Tav