I have a hovabator with a fan. But I'm slowly finding out that I still have temperature variations to the tune of about 3 degrees difference in different places in the bator. If I set it at 100 in one place, it is about 103 on the other side and about 101 in the middle. I don't know how to regulate things any differently. And I think this temp difference is ruining my hatches. Any ideas? Anyone?