When i first got my baby sulcata, I kept him on hay as a substrate. He had a water dish and got regular soakings, but no actual humidity. He pyrimided fast. I have obviously changed his substrate and now I constantly spray him down and I now see some smooth growth. I now have a baby leopard and keep the substrate moist, humidity up there, and spray her regularly till she is dripping wet. I am also doing a kind of experiment with this. I am excited that someone as dedicated as Tom is doing this. I expect to see amazing results, and i hope for them too