Ok, so I am hopeful that I have the temps at a good level. I still have the herpstat prob going through the front lock at the moment. I will drill a hole in the back and run the prob nicely through the hole if the advice I get is that I am good to go. So Please look at the pic. Zone 1 is far left and zone 4 is far right. You can very clearly see the temp of the Herpstat and the thermometers. Using a heat gun I got the following results.

Zone 1 - 93F
Zone 2 - 88F
Zone 3 - 77F
Zone 4 - 71F

Humidity seems a little high? I did had some fresh cedar though last night. Please let me know your thoughts!