Good luck on getting an answer here. try the hydro section...we may have an NFT grower or two here....not sure NFT canna growers are rare. Too many plant numbers. Good luck
Problem you will have with net pots is they will need to have the roots pushing out the bottom of the pot before putting into an nft system or no water will get to the plant. The rockwool blocks absorb the water so the short roots can feed. Unless the grow medium in the pot can soak up nutrient it wont work.