I just finished my home made incubator and am waiting for my fertile eggs to arrive. I've done hours of searching and reading on the site and have learned a ton, but now i'm looking for a few bits of specific advice. I just know there are some incubation geniuses out there looking to share their knowledge. The bator is a retired 54 quart cooler with: -- a hot water thermostat* -- 2 x 40 watt bulbs in line -- 12V PC fan -- 24 egg capacity -- external turning system -- home made egg-o-meter (empty egg filled with hot/cold pack gel with temp probe, sealed with silicone) -- hygrometer 1. The bator has been cycling for about 12 hours and the egg-o-meter is fluctuating between 99.3 and 100.0 Is that close enough tolerance?? My thought is that nature is less precise than that, so it should be OK, but I want to be sure.....there are little lives at stake her after all! The ambient temp inside the incubator fluctuates a bit more. About 98-102. But so far no spikes in either direction. 2. Is 2x40watts too much? would a more gentle 2x25 watt be better? I know this is my first attempt with incubation and I will learn from any mistakes, but I also want to limit those mistakes. So any and all tips and advice is very welcome and appreciated. *I read a few posts that said that wafer thermostats are more precise than the water heater ones, but alas, I had already begun construction.