OK so I purchased an LG 9300 still air incubator for about $50. I must say I followed the instructions for the unit threw some eggs in to see what happens. I am on day 22. Just heard a peep. However my eggs look to be behind due to low temp. Again this is the first use of this incubator and my first hatch provided any hatch. However I am thinking for $50 I could have custom made one and had a better result. Are you using a home made baton or a purchased one? If I purchase another in the future it will not be these over priced styrofoam boxes. After all to be honest, the $50 I spent could have cover the costs of making one and 12 fertile eggs plus an A+ for a science project for my 12 year old son. And we most likely would have had at least 10 chicks! What are you using and why?