By every thing I have read, and I surprisingly found quite a few good reference text and studies on Google scholar, it is not unusual for the root mass on 5 to 6 50 micro misted root masses to be upt to four times larger than any other root masses from any other growing methods. I am still planning on two to three feet deep chambers 36 inches square. I figure on making several different tops. One set for for a plant every square foot and one set for a sog at 4 per square foot. By what I have read the SOG should be so tight that the bottoms will be pretty much self pruning due to minimal light shading. I am hoping with high temps to catually get 5 weeks budding cycles and with more selective care with some new mothers to maybe get down to 1 week of heavy veg lighting and four weeks of budding with afghani/indica crosses. I heard in Amsterdam they have been growing 4 foot white russians (white Widow and AK47 crosses) in two weeks veg from rooted clones and 5 week bloom with air atomization chambers, CO2, temps at high 80's to low 90's and warm water nutrients (82 degrees). They are using low level chlorine constantly because the root masses are so thick. Four nozzles to a chamber for the last 3 weeks. A grower friend of mine just spent 9 weeks over there. His operation was closed down 6 months ago so he is doing serious seed shopping.
i dont know yet if the finishing times will be quicker. i usually let things go a little longer than is probably necessary because i only do one or two runs a year. i can say that from my LP days there is no way these chambers would have filled up. LP roots go to the bottom and there they just create a mat. with this system the roots get real fluffy with large air spaces between them. kind of like cotton candy. and the majority of the root fluffyness only has occured in the last 2 weeks since ive got the thing more dialed in. (way less misting, especially at night. only 2 sec every 30 minutes at night. 2 sec every 10 during day.)
im thinking i will use these chambers for veg and get me some 100 gallon or larger to finish in. Now i know that pump based HP aero can generate the same fine root systems that ive seen in the atomix. you just have to get it dialed in.
I might go for the air atomizing though anyway in the 100 gallon chambers if time permits this summer to manufacture a setup. If not ill go with the same system just bigger chambers.
I know i mentioned it before but even with small girls sog style i would incorporate a way to keep all the roots out of the runoff. you can see a marked difference in the roots above the runoff and those in the runoff. and if you try to decrease the moisture level to accomadate the runoff roots the others suffer somewhat from too little moisture. im going to go with the silk screen bottoms no matter which way i go on the new chambers. (pump based or air compressor based.)
Im sure those roots in the runoff act like NFT or DWC roots. they certainly look like them. maybe they are benifical in that they can pick up large amounts of water to meet the needs of large plants but i think a large mass of the fine roots could probably accomplish the same purpose.