It has only been two days since I've transplanted into the SWC system. The roots were fairly localized beforehand, all knotted up due to the roiling water of the DWC buckets. The newest growth is EVERYWHERE, looks like maybe 7 inches of root growth for each plant since then, judging from the white vs brown roots.

Both plants sitting happy and pretty at 120mm, I forgot to take measurements when I first tossed them in but the growth for two days is QUITE apparent. They won't be 120mm for long, though - I plan on topping these babies soon and training the lower branches.