I'm using a very old (20+ years) GQF cabinet incubator. My friend just hatched about 70+ quail last week with it. I've had it set up at my house for the last three days and it seems stable at 102 - 103 degrees F, by the old thermometer that comes with it. I understand that the egg temp must be maintained at 99.7 F. I've got a water pan and sponge in it. Is it okay to go ahead with the hatch? I need to set about 20 BO eggs. This is my first time. Thank you.