For our last hatch, we had set our Brinsea Mini Adv. 's turning angle at 10 and the interval for 45minutes. Temps remained constant at 99.5 F, humidity was 40% for days 1-18, but only 2 of the 7 eggs hatched I wonder if the angle/interval had anything to do with it because all the eggs were fertile. Can you please advise us on this issue. Thanks!