I think I have 12 set to hatch on Friday. I need to candle them again tonight. 8 of them are a mix of RIR and Australorp/RIR crosses. The rest are out of my Australorp and Buff hens and my mutt roosters. Do you think it would hurt to lockdown tonight? Our last batch hatched on days 19-20. I'm going to be getting home late tomorrow.