I am using a NR 360 for the first time. I have eggs that were started under a hen (from a friend) and we are not sure the exact incubation start date. Most are about the same date - she estimated 7 to 9 days. A few may be older or younger than that. I have 14 eggs. Estimating lay date is 10/1. It is currently 10/15. Do I start lockdown 3 days a head for all which would be 10/17ish (they are silkie chicks and my silkie chicks have almost always pipped at day 19). I am candling eggs tonight. If the eggs, once candled, do not appear to be hatching within a few days of each other, is it okay to open the incubator to hand turn, during lockdown? Any advice is greatly appreciated.