So the problem is not excessive humidity; rather, eggs touching wet substrate and "wicking" & saturating with water? Makes sense.
I now have the eggs on a plastic layer, as many of you have shown, so humidity can be high and they won't touch the substrate. It looks the the majority of folks here keep the eggs right on the vermiculite - so I've got to ask, how do you and keep them from getting too wet? Just a little less water in the substrate?
I'll post a couple pics of the "new and improved" eggs tomorrow. ;)
Thanks for the sound advice.