Ok so here is my breakdown of what I thinka about the topic, I generally disagree that using a hydro system will give you a better yield then using a soil system. I will agree that there a hydroponics system has a faster growth rate but is the yield any better ? Just because something grows faster does not mean it grows bigger, ecspecially in with the same amount of light and space. If you factor in time over a couple grows then hydroponics systems will have a small edge in yield. However if you have a seperate vegitation room, then the timing is not the issue. If you have great aromatics, this is a only an opinion and is only relevant to your growing skills and the methods you use. If done properly, soil will give you buds that will smell as strong as those that are done in a hydropics setup. I tried a hydro setup and the reason I switched back to soil is my time factor, hydro will eat your life away hydropics systems are expensive to setup and they alot of monitoring so your whole crop does not get fried. Using a soil system I can water on friday and go away for the weekend and my marijuana plants will be fine. If you were to leave a hydro setup and something were to go wrong you could wipe out your whole crop. Granted something could go wrong with a soil setup however if you loose 1 or 2 I would not be to worried. There you have it... my thought on soild vs hydroponics, hydroponics will give you a better growth rate but I do not believe it will give you better yields.