So why Unislabs? Several reasons. They drain better than hugos, and plants develop a strong healthy root system in the delta block first, which In my mind is key.
What this allows is almost immediately giving them daily feeds. I can daily feed straight from transplant into the delta, and I can daily feed the same day I put them on the unislabs. Because the delta block is elevated above the slab yet in contact with it, it loses its saturated zone, meaning the waterings will never drown the roots. Instead the roots can explore the saturated slab as they see fit. And boy do they ever..