I am getting ready to change around my larger homemade 'bator in a day or two as I need to change things to accomodate an electric egg turner. Currently lights and fan are below the eggs. Temperature is very steady until I put in the shelf liner stuff - that mucks up air circulation and temperatures get out of whack. Here are my questions: 1. Can I put the fan above the eggs, blowing down? Or is this bad for the eggs? It seems like the Hovabators do this, so I thought it might be OK. 2. Should I put the lights above the eggs and move the egg rack down? I read a post that having the light above the eggs may help with the fetus positioning itself to hatch? Thanks!