Good thread Evan! This is my first year with eggs and I went with the substrate-less method aswell. I have mine setup exactly like your setup but have had the eggs in there since day one. Given that I do not have much to compare to I am not sure how well they are doing. Mine are on day 39 and have held their shape and form for the most part. They are just now starting to dimple a little. Looking at a local pals eggs on substrate it seems like mine are staying much more full. The container has beads of water all over it but the egg surface is "dry". I am sold on this method thus far and look forward to cleaner hatchlings.