Just a few questions about this incubator. Do you have to calibrate these machines when they are brand new and straight out of the box. I also am getting the Humidity Pump with it. Will i need to check the digital temperature and humidity readout on the display screen to make sure they are both right. Thanks for your input. Any tips or tricks using this setup would be greatly appreciated too. Hurry up mail man and deliver my package, it's due to arrive today.