I just set 28 silkie eggs in the bator. 1st time for that many...almost scary! What is the BEST day to candle them? Do I take them all out at once rather than constantly opening top for each one? When I use a broodie I just reach underneath but this is ALOT & don't want to constantly candle them like I usually do. Also, I'm not good at telling quitters...I just compare them! Thanx!