After much testing I totally reconstructed this incubator. Mainly because of condensation and I didn't trust the wafer thermostat.
First the wafer was replaced by a Helix DBS 1000. This thermostat is proportional and sends a trickle of electricity to the heat tape. I like being able to look at it and see exactly what temp its at.
The water bottles were removed to allow more air flow and another fan was added. They are now bolted to the bottom side of the egg crate shelf with one blowing up and one blowing down.
The strips of 3 inch flewwatt were replaced by 3 ft of 11 inch on the bottom and I added 3 ft to the top to stop condesation. It worked great. Six ft may be overkill but with a Helix it only gets a trickle of power.
Here is an updated pic...