I just received my hovabator and egg turner. I'm having a real problem with the temperature. It doesn't have a dial where you can set it, it's like a screw type thing you twist to increase or decrease the temp. Great except you have no real idea how much you are increasing/decreasing it. So my bator was steadily at 105 degrees. I was turning it a small amount at a time to try to reduce it. Now it's at 95 degrees. The instructions on the incubator say 100 degrees is ideal. Is all this fluxuating temp just going to ruin the few eggs I put in there as a test?