Hi Steve,
I set up my Dry and Spilotes eggs as shown in the photo below. I use a plastic sweater box with a small hole near each end of each side (total 4 holes) to allow for air exchange. I actually have more holes in the sweater box, but taped over the others as I fine tuned the balance between humidity and evaporation to get the desired moisture level.
Agricultural grade Vermiculite is used as a hatching medium, and is mixed with water by feel to what I would call a medium level of moisture. The hatching medium is not as moist as I use for most python eggs, but more moist than for bull and pine snake eggs. Be careful to avoid construction grade Vermiculite or Vermiculite that has fertilizer added to it. The additional ingredients in those products may prove harmful to your eggs. I tried Perlite once, but wasn't happy with the results and stopped using it.
The egg container is placed at the front edge of an unoccupied shelf in one of my adult ball python racks. I determine the proper shelf to use and desired temperature range (75 to 78 degrees by shooting each shelf with a temp gun. In my rooms it usually it works out to be the third shelf off the floor.
The eggs are usually good to go at that point, but I will check at least once a week throughout the incubation period to make sure the proper moisture level and temperature range are maintained.
Hope this helps.
Brian
