I'm currently growing in DWC and always get great results with this method.
Just make sure your pH and nutrient levels stay on track. Keeping in mind that any nutrient imbalance can bring instant problems, although, this also works the other way around in that, If you catch any problems, you can almost always correct them (also instantly) before too much harm is done to your girls. I love always having access to the root system. This method also allows you this kind of freedom.
- I use 50% #3 Perlite and 50% Rockwool chunks
- Air stone in each 5-gallon bucket. Simply keep them filled to your fill line making sure roots are wet.
- I keep a 55-gallon container with my final nutrient solution already mixed, air stone, and a large mixing pump running constantly (I use this to keep all other buckets filled to fill line).