I still have a few other rooms running UC's, an 8 site, a 10 site, and a couple 6 sites....
Soils don't work well at all in these setups, even high percentages of soil in your mix tend to suck, super super fast drain with no retention or set the flood cycles to 1 minute intervals so that there is no runoff at all..if you don't the auto top valve will make you insane with super high fill levels in the entire system..it is kind of a trick dance you have to do between the auto top function and the top drip setup......I strait growstones, hydroton, 100% coco, coco/lava mix, or even 100% perilite would work best in these.
The hydro halos work awesome.
Tex