To answer the previous question I put my eggs in the bator on March 23.
I so put mine in on the 23rd. At 8 pm. So technically they are " due" to start pipping Saturday at 8pm. Don't worry.
I always trust my analog thermo over the digitals. Try moving the therms around if you can. If you have a still air it could be that there are hot spots in the incubator causing different thermometer readings.