Egg Substrate Preferences - Whats yours?

One more question, has anyone ever had problems with too much humidity when using "substrateless"?

Vermiculite :)

FOR THE WIN!

We do Vermiculite/Perlite in a 2:1 mix. We then set the eggs directly on that mixture and half burry the eggs in it. It has been great for us.

We do incubate Corn snake eggs in a 100% Vermiculite mix. I don't really have a good reason for this, other than that is how I have always done it.