Incubator temperature for forced air

[Tylermclinchey22]

So I recently got a good mother auto incubator (similar to the janoel12) the manual says to keep it at 100.4 for the first 18 days butt others have said 99.5 for the first 18 days in forced air incubators could someone please recommend a tempature please? Thanks

 

[casportpony]

100.4 seems a little high.