Hushpuppy
Dr MadBud
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Yeah I think ditching the net pots for the grow bags will do better but you will definitely want to keep them from setting in any left over water. I would use the net pots cut off as suggested so that the bags are suspended. This will allow for complete drainage of the coco. If you use a good mixture of at least 30% pearlite in the coco, that will keep the coco from compacting too much and holding water. Coco drains very good but still holds moisture well. It will not hold water in it any higher than the water level even though it wicks water some.
If the water is draining out enough to allow an air space between the bag and the water then you shouldn't have any problems. Just make sure your rez is very well aerated to maximize the amount of oxygen in the water. That way the little bit of water left behind will not develop anaerobic bacteria between flooding. Mine stay suspended above water all the time without issue but I think the aeration is the key.
If the water is draining out enough to allow an air space between the bag and the water then you shouldn't have any problems. Just make sure your rez is very well aerated to maximize the amount of oxygen in the water. That way the little bit of water left behind will not develop anaerobic bacteria between flooding. Mine stay suspended above water all the time without issue but I think the aeration is the key.