I ran my tray the same way as you last grow, but I keep all my moms in coco/perlite.
I feed coco plants the same. I have to say I have been considering the same route as you - one gallon cloth pots with coco/perlite that I can bounce in and out of the tray.
Like you said, I would think the only major change you’d need to make is the flood schedule. With 4" net pots hanging off a lid using hydroton I had to feed every two hours with lights on.
With one gallon coco pots I could see that being every two days instead, unless they get root bound, then daily. A one gallon pot of coco with a 12" clone in it can usually go three days between feeds in my veg tent, but that same put with a full grown, root bound mom needs food and water every day.