Oh! I just remembered I had a better, more current photo of the prolifs taken right before I planted them in the pots. This photo is larger and not blurry, so you can really see the roots on these babies:
There are 2 clumps of prolifs shown with their massive roots seen on the far left. I could not separate the clumps, so just left them all together. They each produced a pretty impressive root system bunched up like that.