Hi! I'm new to BYC, although for the past 2 1/2 years during our chicken adventures we have relied on all of you for lots of support, and I'm very grateful. We have been so successful at our chicken ventures: growing, feeding, selling, incubating, hatching, healing, even stitching up and we owe a lot of our success to all of you for the multitudes of advice and info. Here's my question: We loaned out incubator (styrofoam hand me down with new turner) and about 25 eggs to some friends who have incubated before. They called today to ask about when to lock down. Today is day 21. Has anyone accidentally locked down that late and had success? Please, please no judgement or criticism. I already feel terrible. Thank you.