after putting 24 eggs in on Wednesday I cant get my incubator to settle on 99.5. I have a fan in my incubator and everything I have read says the temp needs to be on 99.5 if I have a fan. I am using a electronic temp control with +/-1 degree differential. If I set my controller on 98 my temps stays mostly on 99 with an occasional rise to 99.5 in incubator, if I set my controller on 99 the incubator stays at 100.5. Which should I go with lower or higher temp????